hishomework的精選

問題詳情：WhenJim’smothercamein,hehishomework. A. isdoing     B. hasdone     C. wasdoing【回答】C知識點：動詞和動詞短語題型：選擇題...

問題詳情：WhileXiaoMing         hishomework，hismothercamewithacupoftea．（）A．hasdoing             B．haddone                C．isdoing                D．wasdoing...