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【題目】I’m really not clear ________.

A. that he solved the crime or notB. what happens to the missing vase

C. how long he came to ShanghaiD. who was questioned by the detective

【答案】D

【解析】

句意：我真的不清楚誰被那個偵探詢問了。

考查賓語從句。A. that he solved the crime or not他是否解決了這個犯罪；B. what happens to the missing vase這個消失的花瓶到底發(fā)生了什么；C. how long he came to Shanghai他來上海多久了；D. who was questioned by the detective誰被那個偵探詢問了。根據句意，可知A選項賓從的引導詞應該用whether，而不是that，所以排除；根據賓從的時態(tài)原則，B選項應該用一般過去時；根據how long不與瞬間動詞come連用，可知C選項錯誤；D選項的引導詞、時態(tài)和語序都正確，故選D。

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