．The highest award was given to Anna, who _____ so hard on the project for years, and at last her efforts paid off.
| A．has worked | B．worked | C．was working | D．had been working |
The doctor couldn’t answer the question _____ the patient could survive that night.
| A．if | B．that | C．whether | D．what |
---I got up at five this morning, I thought it was Friday.
---You _____ so early. It is Sunday today; you don’t have to go to work.
| A．mustn’t have got up | B．needn’t have got up |
| C．needn’t get up | D．mustn’t get up |
He says he really can’t _____ to wait another day.
| A．waste | B．afford | C．spare | D．pay |
---I can’t recite the poem.
---Well, you are supposed _____ it many times yesterday evening.
| A．to read | B．to have read | C．reading | D．having read |
---May I surf the Internet tonight?
--- No, you ______. You must do the exercises.
| A．needn’t | B．won’t | C．mustn’t | D．don’t |