问题

May I go swimming this afternoon — I’m afraid not _______ you have finished your homework.

A:if
B:unless
C:because
D:but;

正确答案是：

同类题型

It seems ________ our team is going to win.

The computer system________suddenly while he was searching for information on the Internet.

She wants_____a sports club .

I want to be a scientist to do some research on green cars when I grow up.—Work hard. I’m sure your dream will be ______.

I ________ you how to deal with the matter, but why didn’t you ask me?