问题

________ you don’t lose heart, I’m sure you can pass the coming examination

A:Unless
B:If not
C:As long as
D:Although

正确答案是：

同类题型

The water in the river isn’t fit to drink, for you know, it __________.

What do you think of Mr Wang—He is _______.We are all afraid of him in class.

It’s ____ cold. Would you please closeall the windows— OK. I’ll do it now.

下列各句中成语使用恰当的一句是（）

In my opinion,to worry about the present situation between China and Japan Everything will be all right