单项选择题
In the first paragraph of a complaint letter, you can write______ .
A、I am writing to complain about....
B、I am sorry to hear that....
C、I look forward to your reply.
D、Thank you for your letter.
In the first paragraph of a complaint letter, you can write______ .
A、I am writing to complain about....
B、I am sorry to hear that....
C、I look forward to your reply.
D、Thank you for your letter.