The girl had hardly rung the bell __________ the door was opened suddenly, and her friend rushed out to greet her.
| A．before |
| B．until |
| C．as |
| D．since |
Helen go on the trip with us, but she isn’t quite sure yet.
| A．shall | B．must | C．may | D．can |
Every possible means to work out the problem, but it is too difficult for us.
| A．hunting for | B．carrying on | C．looking after | D．bringing up |
After graduation from college, he began to go from city to city, a suitable job.
| A．hunting for | B．carrying on | C．looking after | D．bringing up |
The reason why he didn’t attend the meeting is he stayed up late last night.
| A．because | B．what | C．for | D．that |
-- Where _______ the traffic accident took place?
-- Just at the entrance to the school.
| A．was it that | B．it was that | C．was that it | D．it that was |