应该不怎么难哈1.I'm sorry you've been waiting so long,but it'll sti

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应该不怎么难哈
1.I'm sorry you've been waiting so long,but it'll still be some time _____ Brian gets back.
A.before
B.since
C.till
D.after
2.-Must I get through the business in one evening?
-No,you ___
A.mustn't
B.don't have to
解释第一个就可以了第一个不选C 选A
分我提高了

A 后半句意思是在Brian回来之前,他会是一段很长的时间.since 自从...时候,不和意思.after在...之后不和逻辑,翻译不对.till：用于句中,直到...时候,动词是延续性动词,get是瞬间性动词,所以till不对.选A
B must的否定回答是 don't have to

I`m sorry you`ve been waiting so long,but it`ll still be som before和till的区别例 i'm sorry you've been waiting so long,but i I am sorry you have been waiting so long .BUT I am sorry you have been waiting so long .but it will still I'm _______(ture) sorry that I've kept you waiting so long I'm sorry to keep you waiting so long I'm sorry to have kept you waiting so long. I'm sorry to have kept you waiting so long 和i' m sorry to ke 单选题 ---I’m sorry to have kept you waiting so long.--- 1.Don’ 英语翻译U've been waiting so long,I'm here to answer your calls i'm t__ sorry i've kept you waiting long.怎么填空格 i've been missing you so long!