Câu hỏi: The Great Wall of China is the world's _________structure. 

A. long

B. longer

C. most longest

D. longest

Câu 1: _______ are you going to stay ? _ In a hotel .

A. Which

B. Where

C. When

D. What

Câu 2: ________are you from? 

A. What

B. When

C. Where

D. How

Câu 3: They are going_____vacation in London.

A. in

B. on

C. at

D. for

Câu 4: It's cold in our country ………………the winter.

A. at

B. on

C. of

D. in

Câu 5: I usually go to school …….the morning .

A. for

B. at

C. in

D. on

Câu 6: Why don't we ……..television? 

A. to watch

B. watch

C. watching

D. watches