山外清音001
幼苗
共回答了20个问题采纳率:85% 举报
1.D
it is neccessary that sb (should) do 这是一个典型的虚拟语气句式.其中should可以省略.
类似的还有It is important /necessary/ strange/ impossible/natural that等等,都是这种用法
2.C
这里也是虚拟语气,其句型是:It is (high / about) time that + 主语+ 动词的过去式(也可以用should do,但优先使用动词过去式.表示“是时候该做某事了”
如:
It is time that I went to pick up my daughter at school. 我该去学校接我的女儿了.
=It is high time I should go to pick up my daughter at school.
1年前
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