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

A. long

B. longer

C. longest

D. the longer

Câu 3: ______I help you? _ Yes, I‟d like some beef , please.

A. Do

B. Must

C. Would

D. Can

Câu 4: Ho Chi Minh City is_______city in Vietnam.

A. biggest

B. the biggest

C. bigger

D. big

Câu 5: They are going to _______ Nha Trang Beach this summer.

A. stay

B. live

C. go

D. visit

Câu 6: …….are you going to do next weekend? 

A. How

B. How long

C. Where

D. What