Câu hỏi: If you want to be a telephonist, you should _________ your communication skills.

A. practiced

B. practice

C. practicing

D. to practice

Câu 1: By the end of last summer, Alexander _______ his Ph.D.

A. received

B. had received

C. receive

D. are received

Câu 2: The local government suggested ……. a road through the Nam Cat Tien National Park.

A. build

B. to build

C. building

D. being built

Câu 3: Earl was one of the first American artists ___________ landscapes.

A. painting

B. painted

C. for painting

D. to paint

Câu 4: It …………that some foreigners had collected rubbish on Cat Ba Beach.

A. reported

B. was reported

C. could report

D. had been reported

Câu 5: My parents do not allow me______, so I had to stay at home.

A. to go

B. go

C. going

D. gone

Câu 6: If there were flying saucers, there ______ traces of their landing.

A. would be

B. will be

C. are

D. is