He must be in the reading-room, _____ he?
| A．mustn’t | B．doesn’t | C．needn’t | D．isn’t |
．Once it is formed，a bad habit is not easy to。
| A．get rid of | B．pick Out | C．cut off | D．care for |
It suddenly me that we could use a computer to do the job．
| A．beat | B．found | C．struck | D．warned |
It was very of you to let us know you were going to be late
| A．suitable | B．considerate | C．worthwhile | D．modest |
you eat the correct foods be able to keep fit and stay healthy
| A．Only if；will you | B．Only if；you will |
| C．Unless; will you | D．Unless; you wiIl |
It was in New Zesland Elizabeth first met Mr．Smith．
| A．that | B．how | C．which | D．when |