题目内容
【题目】My brother usually _____ his classroom after school. But now he _____ basketball.
A.cleans; plays
B.is cleaning; plays
C.cleans; is playing
D.is cleaning; is playing
【答案】C
【解析】句意：我兄弟经常放学后打扫教室。但是现在他在打篮球。前句描述经常性习惯性的动作，用一般现在时态；后句描述的是now现在正在发生的动作，句子用现在进行时态。故选C。
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