Câu hỏi: I was very busy lately since the project of designing the new collection started.

A. was

B. since

C. the project

D. the new collection

Câu 1: Little have people done to alleviate the sea pollution caused by the factories in central Vietnam, haven’t they?

A. have people done

B. caused

C. in central

D. haven’t they

Câu 2: I can’t find the letter I received from my boss some days ago. I might throw it into the waste paper bin yesterday.

A. received

B. can’t find

C. into the

D. might throw

Câu 3: The Great Pyramid of Giza is said to have built over a 20-year period.

A. of

B. said

C. have built

D. a

Câu 4: The bus was plenty of people who had spent many a happy hour shopping at the new.

A. plenty of

B. who

C. many a happy hour

D. shopping

Câu 5: When a lion gets hungry, its manner changes and it becomes threatened.

A. when

B. its manner 

C. and

D. threatened

Câu 6: An ambitious person is committed to improve his or her status at work.

A. is

B. improve

C. status

D. at