问题

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

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

正确答案是：

同类题型

of the crowded bus __________, who wasdressed in a black suit and waving to a woman

She will tell us why she feels so strongly that each of us has a role _____ in making the earth a better place to live.

What can I do for you, Madam—I just want .

I don’t know if it _________tomorrow. —Well, if it __________, the school sports meet will be canceled.

Lionel Messi, an Argentina soccer player, _______ the Ballond’Or award (金球奖) for five times.