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问题: 这几题的分析

1.There will not be enough room _____the earth.
A.stand on
B.to sit on
C.to stand in on
D.living on
答案是B请问一下选它的理由
2.Don't waste time ____computer games.You'd better spend more time on your study.
A.play
B.playing
C.to play
D.to be played
答案是选B,请问一下不选C的理由
3.Don't worry about me.I will soon get used___in England.
A.to live
B.living
C.to the life
D.to be living
答案是选C请问一下不选A的理由
4.Our classroom must be made ______all the time.
A.cleans
B.clean
C.to clean
D.cleaning
答案是选B请问一下不选C的理由

解答:

1这里填非谓语动词动词不定式主动表被动sit后的宾语去掉on the earth固定词组
2固定搭配waste time doing sth
3这里的意思是get(be)used to(介词to)+名词或doing表习惯
be used to do 被用来做某事
used to 过去常常做某事
4make在这里接形容词clean干净的若选c的话要用被动态
be made to be cleaned