V

2 The alpine scenery (land) is very dramatic. (Cần danh từ chỉ phong cảnh)

3 Women who are slimming can never enjoy a meal without being afraid of disorganizing (organize) their diet.

4 She always listens attentively (attention) to what she is told.

5 He was informed (information) of the consequences in advance. (Cấu trúc bị động: be + V3/ed)

6 The professor explained his ideas with great clarity (clear). (Sau "great" cần một danh từ)

7 The cost of the carriage (carry) must be repaired by the buyer.

chúc mừng em, em rất may mắn khi cj thấy bài của em:>

Tham khảo nè:

Hiu hiuu, cẻm ưn cj chinhhh gáii ở bên kiaa màn hình ạ :3

mn ơi giúp mình cần gaapsppppp lắm ạ T^T

1 It isn't a pen

2 Nam and Ba aren't fine

3 They aren't twenty

4 Are you Thu?

5 Are you eighteen?

6 Is she Lan

Bài 2

1 What is your name/

2 I am Lan

3 Is this phong?

4 How are you today?

5 We are fine, thank you

6 I am Lan and this is Hoa

7 Hello, I am Ann

8 This is my mom her name is Mai

9 They are 18 years old

10 He is not fine today

Tách ra đi bạn ơi, dài quá

1 The distance  from my home to  school is about 3 km

2 My mum used to live in a small village when she was small
3 Despite being a millionaire , he lives in a small flat 
4 when does the festive take place ?
5 It is about two kilometres from my home to school
6 he didn't use to ride his bike to school 
7 Despite having a test tomrrow , they are still watching TV now 

Câu 27: B

Câu 26: D

Câu 25: A

Câu 24: \(A=\frac{x+2}{x\cdot\sqrt{x}-1}+\frac{\sqrt{x}+1}{x+\sqrt{x}+1}-\frac{1}{\sqrt{x}-1}\)

\(=\frac{x+2+\left(\sqrt{x}+1\right)\left(\sqrt{x}-1\right)-x-\sqrt{x}-1}{\left(\sqrt{x}-1\right)\left(x+\sqrt{x}+1\right)}\)

\(=\frac{x+2+x-1-x-\sqrt{x}-1}{\left(\sqrt{x}-1\right)\left(x+\sqrt{x}+1\right)}=\frac{x-\sqrt{x}}{\left(\sqrt{x}-1\right)\left(x+\sqrt{x}+1\right)}=\frac{\sqrt{x}}{x+\sqrt{x}+1}\)

\(A-\frac13=\frac{\sqrt{x}}{x+\sqrt{x}+1}-\frac13=\frac{3\sqrt{x}-x-\sqrt{x}-1}{3\left(x+\sqrt{x}+1\right)}\)

\(=\frac{-x+2\sqrt{x}-1}{3\left(x+\sqrt{x}+1\right)}=\frac{-\left(\sqrt{x}-1\right)^2}{3\left(x+\sqrt{x}+1\right)}<0\forall x\) thỏa mãn ĐXKĐ

=>A<1/3

=>Chọn B

Câu 22:

\(P=\left(\frac{\sqrt{x}-1}{\sqrt{x}+1}-\frac{\sqrt{x}+1}{\sqrt{x}-1}\right)\left(\frac{1}{2\sqrt{x}}-\frac{\sqrt{x}}{2}\right)^2\)

\(=\frac{\left(\sqrt{x}-1\right)^2-\left(\sqrt{x}+1\right)^2}{\left(\sqrt{x}-1\right)\left(\sqrt{x}+1\right)}\cdot\left(\frac{1-x}{2\sqrt{x}}\right)^2\)

\(=\frac{x-2\sqrt{x}-1-x-2\sqrt{x}-1}{x-1}\cdot\frac{\left(1-x\right)^2}{4x}=\frac{-4\sqrt{x}}{4x}\cdot\left(x-1\right)=-\frac{x-1}{\sqrt{x}}\)

\(P>2\sqrt{x}\)

=>\(\frac{-x+1}{\sqrt{x}}>2\sqrt{x}\)

=>\(-x+1>2x\)

=>-3x>-1

=>x<1/3

=>0<x<1/3

=>Chọn D

1 B

2 B

3 D

4 C

5 A

6 D

7 C

8 C

9 B

10 A