Câu hỏi: By the end of last summer, Alexander _______ his Ph.D.

A. received

B. had received

C. receive

D. are received

Câu 1: The public suggested that the factories ………. with waste treatment system.

A. would equip

B. would be equipped

C. should equip

D. should be equipped

Câu 2: My uncle _______ a visit to Germany in 2005.

A. paid

B. pays

C. has paid

D. will pay

Câu 3: In this semester, we have to _____________ our major for future occupation.

A. choose

B. choosing

C. chosen

D. chose

Câu 4: Do you think you will be able ______ a space trip?

A. to take

B. take

C. taking

D. taken

Câu 5: If I ______a bird, I would be a dove.

A. were

B. is

C. was

D. am

Câu 6: He won't be happy if you ______ come!

A. don't

B. haven't

C. didn't

D. won't