问题
填空题
1.Millie often practise _________________ volleyball (play)
2.September 10 is _________________ Day.(teach)
3.Simon is busy __________________ his homework now.(do)
4.Please ___________________ the window. It's cold.(close)
5.Some people don't know how _________________ fun.(have)
答案
1.playing 2.Teachers' 3.doing 4.close 5.to have