You have to wear special clothing, a helmet and a life jacket ____ your raft gets turned upside down or sinks.
| A．so that | B．in order that | C．now that | D．in case |
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 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 |