根据括号内所给的汉语要求，改写句子。

1.  "Don't play outside until you finish your homework,"Mother said to me.  (改为同义句)

    Mother told me______  ______ play outside before I finish my homework.

2.I think computers are more important than MP4.(改为同义句)

    I think MP4 aren't ______ important ______ computers.

3.  To protect wild animals is very important.  (改为同义句)

     ______  very important to______ wild animals.

4.  The girl's supposed to reach our school on time.  (改为反意疑问句)

    The girl's supposed to reach our school on time,______  ______  ?

5. The population of our city is 2,100,000.(对画线部分提问)

    ______  ______  the population of your city?