We offered these students a summer course , aimed _____ improving their spoken English．
| A．to | B．in | C．at | D．for |
—How long are you staying ?
—I don’t know. ______ .
| A．That’s OK | B．Never mind |
| C．It depends | D．It doesn’t matter |
He made up his mind to devote his life ____ pollution _____ happily.
| A．to prevent, to live | B．to prevent, from living |
| C．to preventing, to live | D．to preventing, living |
Many people ______ for the Party before liberation.
| A．laid down their lives | B．lay down their lives |
| C．lied down their lives | D．lying down their lives |
When we talk about the _____we not only mean the sun, he earth and the moon but also
_____ That is too far away to be seen.
| A．universe, the space | B．spacthe universe, |
| C．universe, space | D．space,universe |
Some parts in south China have experienced _____ this year as they did last year.
| A．twice as much rain | B．rain twice as much |
| C．as twice much rain | D．twice rain as much |