遣词造句：根据提供的图画和提示词,写一个符合图意的完整、正确的句子。
water, by
tall, with
put, dustbin
ill, three days
important, obey
共享单车的使用人数今年有望达到五千人．（number）
shared bike users is expected to reach 50 million this year．
In my opinion，teenagers should be to choose their own clothes．
Our teachers told us that the earth moves around the ．
My little brother is 7 years old．He's old to go to school．
We're sure your dream will come if you work hard at it．