问题

I won’t call you, ________ something unexpected happens.

A:because
B:whether
C:unless
D:while

正确答案是：

同类题型

My math teacher said I was too lazy.— ______________. You should work harder.

50. A doctor was___________when Mother fellill.

Let’s watch TV.—That__________ good.

I saw Tom in the meeting-room, so heattend the meeting.

We all think Liu yang is helpful girl. You can believe her.