英语高手请进！谢谢！急急急首先在这里先说明一下情况，因为我的错题是考试的历年真题来的。同时这次的考试对我来说很重要，希望

英语高手请进！谢谢！急急急
首先在这里先说明一下情况，因为我的错题是考试的历年真题来的。同时这次的考试对我来说很重要，希望各位前辈能够帮助我，谨慎作答，因为我会完全相信你们的答案的！谢谢！（题目比较多，如果越详细，解释月明白。我会最后提高财富值的）谢谢！
7.If the United States had built more homesfor poor people in 1955,the housing problems now in some parts of thecountry______soserious.
A.would not be B.would nothave been
C.willnot be D.would have not been 我选了B，答案选A
8.The prominent psychologist admitted to_______by an ambition to prove himself.
A.bedriven B.drive C.being driven D.driving 我选了A，答案选C
9.most of us agree that swimming is moreenjoyable in such a fine day than______novels under the tree.
A.reading B.to read C.being reading D.tobe reading 我选了B，答案选了A
10.The chair looks rather hard,but infact,it is very comfortable________.
A.to sit B.to sit on C.to be sat D.to be sat on 我选了A，答案选B
11.It is the first time we _______such agreat quantity of cotton.
A.improted B.have imported C.shouldimport D.would have imported 我选了B,答案选了A
12.By the time we got to the cinema,thefilm_______for half an hour.
A.has begun B.had begun C.has been on D.had been on 我选了B,答案选了D
13.Most environmental problems existbecause adequate measures for preventing them______taken in the past.
A.was not B.were not C.were notbeing D.had not been 我选了A，答案选了B
14.I think much attention______yourpronunciation.
A.must be paid to B.ought to play C.must pay to D.should be paid by 我选了D,答案选A