Question

请大家看看这篇英语作文有什么语法问题，如果有，怎么改？

Dear Tom
Thanks for asking me to come in your birthday party.But my parents aren't in home now,they will back next month.And my grandmother is ill in bad.She needs somebody to look after her.So I have to stay at home and look after her.By the way,the English test is come.So I must study for the English test.
I'm sorry for that.Maybe next time,I will come in your party!

Yours
Li Ping(不是真名）

Answer 1

Dear Tom,
Thanks for inviting me to your birthday party. But my grandmother is ill in bad. She needs somebody to look after her. And my parents aren't at home now. They will back next month. So I have to stay at home and look after her. Another reason is that the English test is approaching. I must prepare for the English test.
I'm sorry for that. Next time, I will come in your party, and I certainly will!

Yours,
Li Ping

Answer 2

Dear Tom
Thanks for asking me to come to your birthday party.But my parents aren't at home now,they will be back next month.And my grandmother is ill in bed.She needs to be looked after .So I have to stay at home and look after her.By the way,the English test is coming.So I have to study for the English test.
I'm sorry for that.Maybe next time,I will come to your party!

Yours
Li Ping(不是真名）

Answer 3

Dear Tom
Thanks tor inviting me to your birthday party.But my parents aren't at home now.They will be back next month.And my grandmother is ill in bed.She needs somebody to look after her.So I have to stay at home and look after her .By the way, the English test is coming.So I must prepare for the English test .I'm sorry for that .Maybe nest time, I will come to your party!
Yours
Li Ping