Câu hỏi: ________________________, he left the hall quickly.

A. Not be rewarded with a smile

B. Not rewarding with a smile

C. Not having rewarded with a smile

D. Not being rewarded with a smile

Câu 1: New sources of energy have been looking for as the number of fossil fuels continues to decrease.

A. New sources

B. been looking

C. fossil

D. continues

Câu 2: You must have forgotten to send the email, ________ there’s nothing in my inbox.

A. because of

B. for

C. due to

D. owning to

Câu 3: Scientists have invented walls and windows that can block out the noise, which allows individuals to focus on their work without ________.

A. be disturbed

B. disturbing

C. being disturbed

D. being disturbing

Câu 4: Almost poetry is more enjoyable when it is read aloud.

A. is more

B. Almost

C. it is

D. enjoyable

Câu 5: We arrived at the airport. We realized our passports were still at home.

A. Not until we arrived at the airport, did we realize that our passports were still at home.

B. We arrived at the airport and realized that our passports are still at home.

C. Not until had we arrived at the airport, we realized our passports were still at home.

D. It was until we arrived at the airport that we realize our passports were still at home.

Câu 6: Do you know that ________ longest river in ________ world is ________ Nile?

A. the/the/the

B. a/the/the

C. x/the/a

D. the/the/x