问题

May I go to the concert with you– I’m afraid not ____ you have a ticket, because I have only one.

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

正确答案是：

同类题型

I think you can ________ moneyby yourself to buy a birthday present for your mother. —OK. I’ll try. I’llnot let a penny waste.

The report examines teaching methods_______in the classroom.

They did everything ________.

Both parents and teachers work hard at either preventing failure or protecting the children from the knowledge_______ they have failed.

John received D．was finished