用英语怎么说1.你朋友的生日是在9月吗?不,在12月 2.艺术节是在周六吗?不,是在周三

1. Your friend's birthday is in September ?please don't, in December
2.Is art festival on Saturday? No, it's on Wednesday
3.Where is the children's day is a day?
4.I'm busy on Wednesday.
5.I think math is difficult, but the teacher said it useful .
6.My class at the end of the known in the afternoon, and then I have an hour's art class .
7.Let's meet on Thursday, can you?
8.Thank you for your email .