We should stop ________ trees at will (随意)．
A. cutting off B. cutting down
C. cutting down on D. cutting up
This blue shirt ________ him 20 dollars.
A. cost B. spend C. take D. pay
I watched TV________ doing my homework last Sunday.
A. instead B. instead of
C. but D. and
He would like to ________the next Cleanup Day.
A. play with B. play to
C. play against D. play a part in
完成句子，每空一词。
1.电在我们日常生活中起着重要作用。
Electricity________ an important ________ in our daily life.
2.你的抽屉真是一片混乱，你介意清除一下吗？
Your drawer is really a mess.Would you mind ________ ________ ________？
3.要是你忙的话，就改日再来吧。
If you are busy, you may come another day ________.
4.我们必须减少水的用量。
We must ________ ________ ________ the amount of water we use.
5.昨天晚上我们县城的电被切断了。
Electricity was ________ ________ in our town last night.
6.不仅是我而且他也想去看电影。
Not only I ________ ________ he ________ to see a film.
7.他不仅说得更准确，也更简单。
________ ________ ________ he speak more correctly, but he spoke more easily.
The boy stayed at home all day ________ going to school last term.
A. instead
B. instead of
C. take place of
D. take the place of
