题目内容

This problem is said _____ three times.
A.having discussedB.to have been discussed
C.having been discussedD.to have discussed
B

试题分析:考查句型:Sb/Sth is said to have done,某人某物据说已经做了…,因为problem和discuss是被动关系,用不定式完成式的被动,句意是:这个问题据说已经讨论了三次了。选B。
点评:Sb/Sth is said to have done表示不定式的动作在句子的谓语动词之前发生,如果是将要发生就用Sb/Sth is said to do.
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