1．He asked me so many questions at a time________ I didn't know how to answer．（　　）
A．whenB．thatC．asD．as if

分析 他一次問了我如此多的我不知道如何回答的問題．

解答 答案：C  考查從屬連詞．so…as引導(dǎo)定語從句，as的先行詞是many questions，在從句中作answer的賓語，故選C．when當(dāng)…時候；that構(gòu)成目的狀語從句；as if好像．

點評 考查從屬連詞，弄清楚各種從屬連詞引導(dǎo)什么狀語從句，準(zhǔn)確地理解句子、翻譯句子，然后根據(jù)句意選擇最合適的選項．

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