If you be in time for the early bus , be sure to get up before five o’clock in the morning.
| A．are to | B．are about to | C．are going to | D．are due to |
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 |
16．Julia _____ with a stranger when Jim went to the jacket he _____ in the restaurant．
| A．had quarreled; left | B．had quarreled; had left |
| C．was quarreling; has left | D．was quarreling; had left |