Câu hỏi: They are going_____vacation in London.

A. in

B. on

C. at

D. for

Câu 1: ……do you do when it is cold? 

A. Where

B. What

C. When

D. Who

Câu 2: What does Lien do when ………………warm? 

A. there's

B. it's

C. its

D. they're

Câu 3: Tokyo is ________ than Mexico City.

A. smaller

B. smallest

C. the smallest

D. small

Câu 4: The Mekong River is ……….than the Red River.

A. long

B. longer

C. longest

D. the longer

Câu 5: Hanoi is the ………… of Vietnam.

A. city

B. capital

C. beach

D. hospital

Câu 6: _______are you going to spend your summer vacation?_ In Da Lat. 

A. When

B. Where

C. How long

D. What