She often helps her father ( )the house on Sunday She often helps her father ( )the house on Sunday A、cleans B cleaning C clean D to clean 请说明理由 还有一个问题,什么时候用动名词? 打错了 D是to cleaning
一般是动词作主语时要改为动名词; 在介词之后;go +表示室外运动的动词时; 或非谓语动词, 如 Reading in bed is bad for your eyes. What about going shopping ? There are many shops selling all kinds of things.