The students were so clever to see the solution to the problem very quickly

-> How clever the students to see the solution to the problem very quickly!

It is worth reducing the smoke and exhaust fume to prevent global warming.

dòng thứ hai từ dưới lên em  nhé!

1, The salary of a professor is higher than that of a secretary

The salary of a secretary is lower than that of a professor.

2, He felt very miserable ,so he looked for someone to share his life with

He looked for omeone to share his life because he felt miserable.

3, I didn't realize how late it was and i didn't stop studying till after midnight

I didn't realize how late it was and i went on studying till after midnight.

4, When did you start working on the project ?

How long have you worked on the project?

1. not as high as that of a secretary.

2. for someone to share his life with because he felt very miserable

3. on studying till after midnight

4. have you worked on the project

1, The salary of a secretary is not as high as a professor's

2, He looked ffor someone to share his life with because he felt very miserable 

3, I đin't realize how late it was and i went on studying till after midnight

4, How long have you been working on the project ?

1, Finish your homework or you can't go out with your friend (if)

2, They're not sure how they should operate the new system (to)

They're not sure how to operate the new system.

3, It took me 4 hours to read the first chapter of the book (spent)

I spent 4 hours reading the first chapter of the book.

4, Snowboarding is more dangerous than tennis ( as )

Tennis isn't as dangerous as snowboarding.

1, Finish your homework or you can't go out with your friend (if)

.........If you don't Finish your homework , you can't go out with your friend ..............

2, They're not sure how they should operate the new system (to)

........They're not sure how to operate the new system................

3, It took me 4 hours to read the first chapter of the book (spent)

.........I spent 4 hours reading the first chapter of the book............

4, Snowboarding is more dangerous than tennis ( as )

.............Tennis isn't as dangerous as Snowboarding .....................

1, They had been on board before he arrived at the airport

As soon as .................he arrived at the airport, they had been on board.

..............................

2, How long has you passessed that Chanel bag ?

When..........did you start passessing that Channel bag ?

..............................................

3, " Why do I have to conduct thiss research ?" she asked me

She asked me ..............why she had to conduct that research.............................

4, He needs to talk to the psychologist about his current situation

It is .....................neccessary for him to talk to the psychologist about his current situation

.................................

40."Steve, tidy up your room now"Mrs Thu ordered.

-> Mrs Thu ordered Steve to tidy up his room then

41."Please, take out the rubbish"Mrs Young told the maid.

-> Mrs Young told the maid to took out the rubbish

42."Finish your homework before watching TV,Mary" her mother said.

-> Mary's mother said that she finished her homework before watching TV

-> Mary's mother said that she had finished her homework before watching TV

43.Yen asked me,"Is the Statue of Liberty in New York?"

-> Yen asked me if the Statue of Liberty was in New York

-> Yen asked me whether the Statue of Liberty was in New York

44.I asked her,"Do you enjoy your English class?"

-> I asked her if she enjoyed her English class

-> I asked her whether she enjoyed her English class

45.I asked my new class mate,"Do you visit the Taj Mahah in India?"

-> I asked my new class mate if he / she visited the Taj Mahah in India

-> I asked my new class mate whether he / she visited the Taj Mahah in India

46."Can you go to the concert with me tonight? our friend asked us

-> Our friend asked us to go to the concert with her / him that night

47."Wherecan i find the director's office?" the woman asked me

-> The woman asked me where she could find the director's office

48."How muchdoes it cost?" I asked me

-> I asked me how much it cost

49.The travelers asked,"how long does it take to get to Ha Long Bay?"

-> The travelers asked how long it took to get to Ha Long Bay

50"Why does Peter sing a song loudly?" we wondered

-> We wondered why Peter sang a song louly

51."When does the next bus leave?" she asked me

-> She asked me when the next bus left

52.She said to me"Are you hungry?"

-> She said to me if I was hungry

-> She said to me whether I was hungry

53.The man said to her"Can you play the guitar?"

-> The man said to her to play the guitar for him

54.Thu's mother said to her,"Are you willing to help your friends now?"

-> Thu's mother said to her if she was willing to help your friends then

55.The doctor said to the patieto,"Do you feel better now?"

-> The doctor said to the patient if he / she felt better then

-> The doctor said to the patient whether he / she felt better then

56.The son said to his father,"Will you come here every weekend, dad?"

-> The son said to his father to come there every weekend

57.The teacher said to the students"Are you ready for tomorrow?"

-> The teacher said to the students if they were already for the day after

-> The teacher said to the students whether they were already for the day after

58.The tourist said to the boy,"Do you know the way to the post office in Chu Se?"

-> The tourist said to the boy if he knew the way to the post office in Chu Se

-> The tourist said to the boy whether he knew the way to the post office in Chu Se

59.The old lady said to the young boy,"can you read this letter?"

-> The old lady said to the young boy to read that letter for her

60.The child bsaid to the beggar,"are you very poor?"

-> The child said to the beggar if he / she was very poor

-> The child said to the beggar whether he / she was very poor

61."Why didn't you report the incident to the policelast week?"the office asked her

-> The officer asked her why she didn't report the incident to the police the week before

-> The officer asked her why she had not reported the incident to the police the week before

62.He said to her, will take you at home"

-> He said to her to take her at home

63,"Did you phone me yesterday?"Tim asked Mary

-> Tim asked Mary if she phoned him the day before

-> Tim asked Mary whether she phoned him the day before

64,"Please wake me up at 5 o'clock", he said to me

-> He said to me to wake him up at 5 o'clock

65.The teacher said to us,"keep silent, please"

-> The teacher said to us to keep silent

40."Steve, tidy up your room now"Mrs Thu ordered.

Mrs Thu told Steve to tidy up his room then

41."Please, take out the rubbish"Mrs Young told the maid.

Mrs Young told the maid to take out the rubbish

42."Finish your homework before watching TV,Mary" her mother said.

Mary's mother told her to Finish her homework before watching TV

43.Yen asked me,"Is the Statue of Liberty in New York?"

Yen asked me if the Statue was of Liberty in New York

44.I asked her,"Do you enjoy your English class?"

I asked her if she enjoyed her English class

45.I asked my new class mate,"Do you visit the Taj Mahah in India?"

I asked my new class mate if you visited the Taj Mahah in India

46."Can you go to the concert with me tonight? our friend asked us

our friend asked us if Can we could go to the concert with him that night

47."Wherecan i find the director's office?" the woman asked me

the woman asked me where she could find the director's office

48."How muchdoes it cost?" I asked me

I asked me How much it cost

49.The travelers asked,"how long does it take to get to Ha Long Bay?"

The travelers asked me how long it took to get tô Hạ Long Bay

50"Why does Peter sing a song loudly?" we wondered

we asked me whyPeter sang a song loudly