_________ pleased me was that there was my purse, in the back seat of the taxi, _____ the driver couldn’ t possibly see it before.
| A．That ; that | B．Which ; which |
| C．What ; where | D．How ; when |
21．The doctor couldn’t answer the question _____ the patient could survive that night．
| A．if | B．that | C．whether | D．What |
20．---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 |
19．He says he really can’t _____ to wait another day．
| A．waste | B．afford | C．spare | D．Pay |
18．---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 |
17．---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 |