这篇英语作文有什么错误地方,请指出.
dear lucy:
I'm sorry,I can't visit your party.My mather and my father have a meeting.They can't go home of three days.so!I should care for my grandmather.She is ill and she can't do the housework.So,I Instead of she do some housework and cooking.And i should study for the test.Because i have a English test in next week.The last .I hope you have a good time in your party.
Your best frend:li li