【題目】He appears ______ about this matter.

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

【答案】A

【解析】

考查不定式的完成時(shí)。句意：他似乎已經(jīng)聽說過這件事了。分析句子，appear to do sth譯為“似乎做某事”為固定搭配。分析句意，hear的動(dòng)作發(fā)生在appear之前，表示已完成。所以此處需用不定式的完成時(shí)。故選A項(xiàng)。

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