D.别看见have 就判定不用there be,这里的have是完成时,不表示有,可以把句子简化分析,have been 相当于is,seem to 似乎,暂时去掉,所以就可以为：
There is great difficulty in becoming top graduates.现在不就是there be句型了吗?
() seems to have been great difficulty in becoming top graduates.
() seems to have been great difficulty in becoming top graduates.
A,That B,What C,Which D,There
A,That B,What C,Which D,There
英语人气：187 ℃时间：2020-04-11 15:46:49
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