correct the following sentences
1.Because he felt ill,so he did not come to the meeting
2.He is tall,but he is very weak in healthy
3.He is not so strong like you
4.I began to learn English until I went to middle school
5.He rushed over to see him because of he heard a boy crying
6.If you think hard,and you'll find a good way
7.If it snow heavily the day after tomorrow,we will not drive there
8.IfI will have time next weekend,I'll go to the zoo
9.If I finished my report,I will be happy
10.If he goes to Beijing Zoo,he would learn a lot about animals