Câu hỏi: I don't remember ...... of the decision to change the company policy on vacations. When was it decided?

A. telling

B. being told

C. to tell

D. to be told

Câu 1: The boy found a wallet in the street, and then he ...... to return it to the loser.

A. tried

B. had tried

C. was trying

D. had been trying

Câu 2: The film _______ by the time we ________ to the cinema.

A. already began - got

B. have already begun - got

C. had already begun - got

D. already began - had got

Câu 3: A hydroelectric dam ______________ in this area now.

A. is building

B. is being built

C. build

D. was built

Câu 4: Deforestation _________ destroying Earth’s plant and animal variety.

A. are

B. be

C. is

D. being

Câu 5: The two children blamed each other ...... the window.

A. to break

B. breaking

C. for breaking

D. having broken

Câu 6: The leopard is _________ the threat of extinction.

A. in

B. on

C. under

D. below