1.      He knows where the boy was hiding but he didn't let                 

A. up                                 B. off                             C. on                                D. in

2.      He promised to deliver the stuff today and has let us                 again.

A. up                                 B. on                              C. off                               D. down

3.      It seems that the rain is letting                 

A. up                                 B. on                              C. off                               D. in

4.      The traffic was held                  by fog.

A. up                                 B. over                           C. back                            D. out

5.      Because of the heavy rain, today the meeting will be held                 until next week.

A. up                                 B. back                           C. out                               D. over

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

I saw him hiding something in a _____________ bag.

III. Khoanh tròn đáp án đúng:

14. Summer is coming. _______ on _______ way.

15. She is looking ________ the children. They’re hiding.                                  

16. Everyone must remember _________ lies.

17. I’ll do the job to my best ________.

18. Many schools use videos _________ teaching.

19. We _________  to our new house on January 1^st.

20. Fluoride toothpaste helps _________ tooth decay.

21. She added a little salt to the soup so it tasted _______ .