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

A. When

B. Where

C. How long

D. What

Câu 1: It's always cold in the ….. 

A. summer

B. spring

C. fall

D. winter

Câu 2: The Great Wall of China is the world's _________structure. 

A. long

B. longer

C. most longest

D. longest

Câu 3: They are going _______ Hue for a week.

A. to stay

B. to visit

C. staying

D. stay

Câu 4: Ba and Nam usually go________in the river. 

A. swimming

B. sailing

C. camping

D. walking

Câu 5: The Mekong River is ……….than the Red River.

A. long

B. longer

C. longest

D. the longer

Câu 6: There are ______apples in the refrigerator.

A. a

B. an

C. some

D. any