【题目】Lily sometimes cleans her bike on the weekend. Look! She ___________ now. ( )
A.clean her bike B.is cleaning her bike C.is clean her bike
【答案】B
【解析】
句意:莉莉有时在周末打扫她的自行车。看!她现在正在__________。Look是现在进行时的标志词,主语+be+doing,根据题意,故选B。

【题目】Lily sometimes cleans her bike on the weekend. Look! She ___________ now. ( )
A.clean her bike B.is cleaning her bike C.is clean her bike
【答案】B
【解析】
句意:莉莉有时在周末打扫她的自行车。看!她现在正在__________。Look是现在进行时的标志词,主语+be+doing,根据题意,故选B。