1 They have ball games four times a year.他们一年举行四次球赛.
2 You must return them on time.你必须按时归还他们.
3 It's so difficult and boring ,sometimes I don't like it very much .它是如此的难和泛味,有时我非常不喜欢它.
4 I 'm sure that selling fried dumplings and rice will make a lot of money .我相信卖油炸饺子和米饭会挣很多钱.
5 They are playing basketball.他们正在打篮球.
6 How often do you go to school?你多久上学一次?