问题详情：
Dear Mr. Black,
I’m very thank to you for inviting me to stay with you in the come summer vacation. I have been dreamed of seeing you again so that I can get help from you in my English learning. And I’m afraid I cannot go to your place in this summer. I’ve promised my grandmother, she lives in the country, to spend this summer with her. She misses me too much that I find difficult to refuse her request. I’m Busy preparing for my examinations in present. I planned to visit you in winter if it’s convenient to you.
【回答】
k改为thankful
改为coming
med改为dreaming
改为But
5.去掉in
改为who
改为so
后面加it
改为at
ned改为plan
知识点：其他
题型：短文改错
