In the past, most Chinese families have got one child in them. But recently, the government has relaxed the family planning policy, which means each couple are allowed to have two children. Would you like to have a brother or a sister who grows up together with you?

    Now please write a passage of about 80-120 words to introduce your opinion. The following points should be included:

    ⒈Is it necessary for a family to have more than one child? Give at least two reasons for it.

    ⒉What's the situation in your family? Are you the only child or not? List what makes you happy and unhappy.

    ⒊Give at least two suggestions to the families with two children.

设a，b，c都是正实数，求证：$a^a{b}^b{c}^c\ge {\left(abc\right)}^{\frac{a+b+c}{3}}$

扩句

①我们爱惜时间。

②人们避雨。

根据首字母提示和汉语提示写出单词。
        Mr Smith usually gets up late on the w ____     . After he gets d____   , he e____     for an hour. He thinks it's very     ____      （重要的）to do sports. Then he has breakfast   ____   (迅速地). He likes talking with other p____      , so he often goes to the park to talk with his friends in the afternoon. But sometimes he has to go to the hospital, because he has some bad    ____   （牙齿）in his mouth. It's t ____  (非常讨厌的)!  Mr Smith likes singing, too. He wants to be a   ____   （音乐家）. He hopes his dream can come t ____  one day.