Everything to do with ______ nature can have______ important part to play in the development of man.
| A．the ; / | B．a ; an. | C．/ ; an. | D．the ; an |
The soldiers have devoted s11 their time and effort to those trapped
under the fallen buildings．
| A．save | B．have saved | C．be saving | D．saving |
you can’t read or write，how can you find a good job?
| A．As long as | B．Unless | C．Now that | D．Although |
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 |