问题

He waited with his companion_________the rescuers came, and then helped them carry her back down the mountain

A:when
B:until
C:unless
D:while

正确答案是：

同类题型

There ________ a talent show on TV tomorrow.

For my homework I have to write a(n) aboutthe wonders of the world.

What’s the model plane look like— The wings of the plane are _____ of its body.

Jack can’t concentrate on his lessons recently.— Yes, that might ____ why he did so badly in the last test. [ ]

No children_____________to watch this kind of movie because it’s too scary.