The elevator in the teaching building was always in the summer vacation. That was why I chose to climb the stairs instead.
You __________ to leave until you __________ your work.
The girl’s face looked pale, so our classroom teacher requested that she ________to hospital immediately.
Not until I began to work ________ how much time I had wasted.
The roads are crowded __________ walking to work is even quicker than driving.
We had a really bad time about six months ago but now things are______.