54beer
幼苗
共回答了21个问题采纳率:90.5% 举报
1动名词.例:Swimming is good for health.
2现在进行时.例:I am doing my homework.
3动词并列.例:She stood here,reading a book.
4动词前有部分介词.例:She is looking forward to seeing him.
5有些动词加ing变为形容词.例 :exhaust(动词:耗尽精力)加ing为exhausting(形容词:精疲力尽的)
希望对你有所帮助.
1年前
6