16.I was watching TV__________my brother was writing an e-mail at home at this time last night.( 。
A.as soon asB.afterC.untilD.while

分析 昨天晚上這個時候,當我哥哥在家里寫電子郵件的時候,我在看電視.

解答 答案:D;
根據(jù)設(shè)空處前后的句子都用了過去進行時,可以推斷本句的句意是"昨天晚上這個時候,當我哥哥在家里寫電子郵件的時候,我在看電視.",表示主句的動作和從句的動作同時發(fā)生且持續(xù)進行,用while引導(dǎo)時間狀語從句,while"當…時",通常與延續(xù)性動詞連用,表示兩個動作同步發(fā)生,故選D.

點評 聯(lián)系前后語境,在準確把握前后句關(guān)系的基礎(chǔ)上,先推測出大體句意;再結(jié)合關(guān)鍵詞利用其固定用法選出正確答案.

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