—Shall we go out for a swim?
—Sorry, I can’t. I ______ housework for my mother now.
A. am doing B. is doing C. are doing D. did
—Shall we go out for a swim?
—Sorry, I can’t. I ______ housework for my mother now.
A. am doing B. is doing C. are doing D. did
A
解析:考查动词时态。根据语境“我不能出去游泳,(因为)我现在正在为我妈妈做家务。”后有now.故用现在进行时。选A。