We have to try every means to ____ the costs of the construc

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We have to try every means to ____ the costs of the construction project.
选项:
a、bring off
b、bring forth
c、bring down
d、bring back
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题号:17 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:5
内容:
We don’t need air conditioning,____.
选项:
a、nor can we afford it
b、and nor we can afford it
c、neither can afford it
d、and we can neither afford it
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题号:18 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:5
内容:
I didn’t know what to do but then a good idea suddenly __________me.
选项:
a、happened to
b、 happened upon
c、 occurred to
d、occurred upon
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题号:19 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:5
内容:
__________his wealth,Tom is not very happy.
选项:
a、In spite of
b、Besides
c、Beside
d、Though
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题号:20 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:5
内容:
I should be glad to __________you on the subject as soon as possible.
选项:
a、hear from
b、hear of
c、 hear about
d、hear to

16.C:bring down减少的意思
17.A:nor can we afford it我们也用不起
18.C:occurred to=come up with闪现在我的脑海
19.A:in spite of + n.尽管他很富有,但他不快乐
20.A:hear from sb.固定搭配表示：收到来信

We should try every means to ____ our environment from being Time ____ ,we will try our best to fulfill the task ahead of -------- means the work we have to do after shool --------- means the work we have to do after shool we try to finish the job by all means.这种用法对吗 We should try to keep the（平衡）of nature We try to keep the b______(平衡） of nature (用适当的形式填空）Every year we go to the hospital to have a ____(me we have to clean the classroom every day Every possible means _____ to prevent the pollution,but the We have missed the last bus.It means _____ to walk over the 填空题At the moment we have too much to do ____(think)of doing