the children are having fun ( ) on the hill.play to play playing played
问题描述:
the children are having fun ( ) on the hill.play to play playing played
答
have fun in doing sth. 其中的in可以省略.即 have fun doing sth. 故选择C (playing)
答
playing
答
答案选 to play
孩子们很高兴地在山上玩。
答
playing
have fun doing sth.
答
have fun dong sth 开心于某事
选 playing