We can never forget the days we worked together and the days we spent together.
| A．when; which | B．which; when |
| C．what; that | D．on which; when |
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 suddenlyme that we could use a computer to do the job．
| A．beat | B．found | C．struck | D．warned |
It was veryof you to let us know you were going to be late
| A．suitable | B．considerate | C．worthwhile | D．modest |
you eat the correct foodsbe able to keep fit and stay healthy
| A．Only if；will you | B．Only if；you will |
| C．Unless; will you | D．Unless; you will |
It was in New ZealandElizabeth first met Mr. Smith．
| A．that | B．how | C．which | D．when |