Câu hỏi: The specialist was under so much stress that he finally ________.

A. broke off

B. broke down

C. broke out

D. broke in

Câu 1: As we wait no longer for the delivery of your order, we have to ______ it.

A. postpone

B. refuse

C. return

D. cancel

Câu 2: Do you mind if I ______ with my work while you are getting tea ready?

A. turn to

B. carry out

C. come on

D. carry on

Câu 3: The fog made it difficult for the driver to see when the traffic lights _____.

A. adjusted

B. moved

C. changed

D. removed

Câu 4: When she heard from the hospital the father had died, she ______ into tears.

A. burst

B. exploded

C. fell

D. melted

Câu 5: It isn’t quite ______ that he will be present at the meeting.

A. right

B. exact

C. certain

D. formal

Câu 6: The bus ran over the cliff because its _______ failed.

A. brakes

B. controls

C. gears

D. signals