Câu hỏi: Ba and Nam usually go________in the river. 

A. swimming

B. sailing

C. camping

D. walking

Câu 1: The Great Wall of China is the world's _________structure. 

A. long

B. longer

C. most longest

D. longest

Câu 2: They are going_____vacation in London.

A. in

B. on

C. at

D. for

Câu 3: What does Lien do when ………………warm? 

A. there's

B. it's

C. its

D. they're

Câu 4: Why don't we ……..television? 

A. to watch

B. watch

C. watching

D. watches

Câu 5: No one can do it well.______ 

A. So can't she.

B. Neither can she

C. She can't, too

D. She can, either

Câu 6: The Robinsons always go to Viet Nam ……..plane.

A. in

B. on

C. with

D. by