根据单词适当形式填空

问题描述:

根据单词适当形式填空
1、Do you have difficulty ____(finish) the work yesterday?
2、I think _____(volunteer) in a school is great fun.
3、I am used to ____(run) in the morning.
4、I really want them to be _____(success)
5、Mr.John got five ____(letter) last week,

finishing
volunteering 动名词做主语
running be used to doing sth习惯于做……
successful 成功的
letters
加油!