7．---Has Li Lei finished his work today？
---I have no idea，but he ______ it when I saw him this morning．（　�。�
A．had doneB．would doC．was doingD．did

分析 ---李磊已經(jīng)做完今天的工作了嗎？
---我不知道，但是今天上午我看到他時(shí)，他正在做著．

解答 答案：C．根據(jù)when I saw him this morning可知今天上午我看到他時(shí)，他正在做著，所以用過去進(jìn)行時(shí)，答案是C．其他選項(xiàng)表示的時(shí)態(tài)分別是A過去完成時(shí)；C過去將來時(shí)；D一般去時(shí)．

點(diǎn)評(píng) 考查過去進(jìn)行時(shí)．語境是時(shí)態(tài)選擇的關(guān)鍵，只有了解句子所表達(dá)的意思，才能選擇到正確的答案．

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