问题

I’m busy with my schoolwork these days.—That’s great! You won’t get good grades ______ you work hard.

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

正确答案是：

同类题型

I walked as fast as I could, ____ not to miss the wonderful film. [ ]

An increase in the price of drugs has _____ the rising cost of medical care.

One of my teachers ____ an Englishman.

Excuse me, can you tell me how to get to the WC– Go along the hallway and then you will see a sign which will ____ you to it.

They climbed to the top of the tower, _____ they could see _____ was happening in the distance