英语句子改错.<怎么改?为什么?>

1.My mother doesn't care on her health at all.
care on(无此搭配）-->care about担心

2.Will you help someone in trouble?
someone-->anyone
否定，疑问句用anyone
肯定句用someone

3.Grandpa,when shall little Ann come to our home?
shall-->will
will的用法比较广泛，第几人称都可以用
而shall一般只用在第一人称 I,we

4.Why do you always laugh on other classmates?
laugh on(无此搭配）-->laugh at 嘲笑, 漠视, 因...发笑

5.I don't like raindays at all.
raindays-->rain days
拼写错误

6.She often makes few mistakes than her classmates.
few--fewer
fewer...than 比较级句型

7.At the top of Mount Qomolongma,three metres of snow can fall at one day.
at one day(无此搭配）-->in one day
表示”在一天的时间内”用"in one day"
例如：
We picked the whole field in one day.
我们在一天之内把这一整块地收割完了

8.The moon is much less than the Sun.All of them are stars.
much less-->much smaller
much less不形容体积上的”小得多”