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问题: 单选32

The visiting Minister expressed his satisfaction with the talks,______that he had enjoyed his stay here.
A.having added B.to add C.adding D.added

解答:

C
用主动,排除D
前面半句先发生,排除A
不表目的,排除B
因为两个句子时间相差不远,所以前面半句不改成过去完成时也是可以的,而且倾向于不用过去完成时