补全对话.

补全对话.
从方框中选择合适的选项补全对话,使对话完整、通顺.
A：John,can you help me with my Chinese this evening?
B：I’m sorry I can’t.（51）_______________ Why don’t you ask your brother for help?
A：I fought with him yesterday morning.
B：（52）____________________
A：He doesn’t talk to me anymore.What should I do?
B：You can write him a letter.
A：（53）_________________
B：Maybe you should send him a message.
A：That’s a good idea.（54）____________________
B：Tom,I think you should work harder to improve your Chinese.
A：（55）_____________________ I’ll study harder from now on.
A：Oh,I don’t like writing letters.
B：I’ll send him a message later.
C：I don’t want to talk about it on the phone.
D：I have to do my homework.
E：I certainly know that.
F：I think you should say sorry to him.
G：Thank you for helping me with my Chinese.