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【题目】He appears ______ about this matter.

A.to have heardB.to hearC.having heardD.heard

【答案】A

【解析】

考查不定式的完成时。句意:他似乎已经听说过这件事了。分析句子,appear to do sth译为“似乎做某事”为固定搭配。分析句意,hear的动作发生在appear之前,表示已完成。所以此处需用不定式的完成时。故选A项。

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