问题描述：
紧急：一道英语问答题!
How long has this been going on?
A It's nothing serious.
B It's fine today.
C It came on yesterday.
并说说为什么.答的好的还加分!
How long has this been going on?
A It's nothing serious.
B It's fine today.
C It came on yesterday.
并说说为什么.答的好的还加分!
问题解答：
我来补答展开全文阅读