题目内容：

 

1.________________________(留着短发的那个女孩) is my sister.(with)

2.--_________________________________(到达学校要花多长时间)？

--About 15 minutes.(get)

3.—Why does everyone like that boy?

---Because he ___________________________________(总是乐于帮助有困难的人)。（ready）

4.—There are too many cars in our city,we should drive less for fresh air.

---You are right,everyone________________________________________(人人都应该尽一份力保护环境)。（part）

5.Could you tell me____________________________________(你的弟弟多久锻炼一次)？