Câu hỏi: The rivers can be…………..by chemicals. 

A. poisonous 

B. contaminated

C. flooded

D. polluting

Câu 1: He can make change in his timetable when he wants to. It means that he's got a……….timetable. 

A. modern 

B. fashionable

C. flexible

D. convenient

Câu 2: After the campaign, a special medal was…….to all people involved.

A. gained 

B. awarded 

C. earned

D. deserved

Câu 3: It ________ easy to paint pictures if you knew how to.

A. would be

B. had been

C. would have been

D. be

Câu 4: The elevator isn't running now. It must be….order. 

A. out of

B. for

C. into 

D. behind

Câu 5: Mary: How often do you go hiking?

A. Most weekends

B. I go with three friends.

C. We stay for a weekend.

D. I often go hiking with my family.

Câu 6: The children slept deeply _____ the noise.

A. in spite

B. despite

C. although

D. A and B are correct.