it做形式主语时,一定要找到真正的主语,只能是to do或主语从句(一般由that引导)形式。此题中无 to do 或 主语从句,所以it无所指代,所以错 it不能指代介词短语, it可以指代主语从句和不定式结构: It is difficult to do this research. It is important that we finish on time. 在这两个例子中it分别指代to do this research和that从句
it做形式主语时,一定要找到真正的主语,只能是to do或主语从句(一般由that引导)形式。此题中无 to do 或 主语从句,所以it无所指代,所以错
it做形式主语时,一定要找到真正的主语,只能是to do或主语从句(一般由that引导)形式。此题中无 to do 或 主语从句,所以it无所指代,所以错 it不能指代介词短语, it可以指代主语从句和不定式结构: It is difficult to do this research. It is important that we finish on time. 在这两个例子中it分别指代to do this research和that从句
awkward no need to use words like "time"
it不能指代介词短语after the time
after the time...表达混乱,意思不清晰;而且如果用这种表达,后面不未划线部分是过去完成时,前面不能用一半过去时。
It took time TO DO sth. And this sentence is scattered meaningless and wordy.
http://www.beatthegmat.com/mba/2012/02/05/more-on-meaning-a-gmatprep-sentence-correction-problem
it 没有指代
it ....after the time.......错的; 只有it ...to 和 it...that!!!
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