5.sing→singing和are 一起构成现在进行时
4.with→and
3.runing→running
2.meeting→meet.运动会,应说sports meet
1.Now 后加it.指时间.
10.
10.for→to. 短语show sth. to sb.意思是“把某物给某人看”
9.papers→paper. paper是不可数名词
8.takes 后加out. take out 意思是“取出,拿出”
7.how后加to. 知道如何干某事应说know how to do sth.