So serious that all the persons on board were killed.
| A．was the accident | B．did the accident | C．the accident was | D．the accident did |
It was about 5 o’clock in the afternoon _______ they had their supper.
| A．that | B．what | C．before | D．when |
His suggestion made me angry, but _______.
| A．making others happy | B．to make others happy |
| C．others happy | D．his advice others happy |
_______ that he might lose his job, Peter always works extra hours to please his boss.
| A．Worrying | B．Having worried | C．Having been worried | D．Worried |
— I haven’t finished my task yet.
— You shouldn’t have watched the film last night, or you _______ it by now.
A, need have finished B. may have finished
C. should have finished D. will have finished
It’s only six o’clock now; Little Tom should be up ,though, because he _____ for nine hours.
| A．has been sleeping | B．had been sleeping | C．has slept | D．had slept |