Câu hỏi: ________are you from? 

A. What

B. When

C. Where

D. How

Câu 1: The Robinsons always go to Viet Nam ……..plane.

A. in

B. on

C. with

D. by

Câu 2: It's cold in our country ………………the winter.

A. at

B. on

C. of

D. in

Câu 3: The Mekong River is ……….than the Red River.

A. long

B. longer

C. longest

D. the longer

Câu 4: They are going_____vacation in London.

A. in

B. on

C. at

D. for

Câu 5: The Great Wall of China is the world's _________structure. 

A. long

B. longer

C. most longest

D. longest

Câu 6: Ho Chi Minh City is_______city in Vietnam.

A. biggest

B. the biggest

C. bigger

D. big