China is a peace-loving country and _____no circumstances _____ first use nuclear weapons.
| A．on; will China | B．on; China will |
| C．under; will China | D．under; China will |
You'd better get all the work _________ before you leave.
| A．finishing | B．to finish | C．finished | D．be finished |
At midnight the enemy attacked _________.
| A．without warning | B．without notice | C．without permission | D．A or B |
He had to___ before they finished the course because they were not well disciplined.
| A．drop in | B．drop out | C．drop off | D．drop by |
It looks as if they are going to _________ us a lot of money for the concert hall.
| A．demand | B．cost | C．charge | D．ask |
_________ needs further discussion whether we'll build a laboratory or not.
| A．The matter | B．He | C．It | D．We |