【題目】______ I was doing my homework, my brother was watching cartoons.

A. Because B. While C. As soon as D. After

【答案】B

【解析】句意：當我正在做我的家庭作業(yè)的時候，我的弟弟正在看卡通片。Because因為，引導(dǎo)原因狀語從句；While當…時候，引導(dǎo)時間狀語從句；As soon as一…就…，引導(dǎo)時間狀語從句；After在…之后，引導(dǎo)時間狀語從句。題干中的這句話主句和從句中都用了過去進行時，表示兩個動作同時發(fā)生，故應(yīng)選B。

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