I'm afraid we can't.恐怕我们不能。
I get rised last month.我上个月加薪。
I'm not sure i can't agree.我恐怕不能同意。
I'm not sure about that.我不确定那样是不是好。
There must be some other ways.一定有其他的方法吧。
Surely you remenber him.你一定记得他吧。
What are you talking about?你在说什么?
Are you crazy?你疯了吗?
You're joking.你开玩笑。
You must be kidding.你一定是开玩笑。