Shortly after the accident, two___________ police were sent to the spot to keep order.
| A．dozens of | B．dozens | C．dozen of | D．dozen |
. “_____ when does the pub stay open？” “About midnight.”
| A．Since | B．Before | C．Until | D．After |
. “Shall we stop for lunch _____ shall we drive on？” “Let’s stop for lunch, but the driver can’t drink _____ drive.”
| A．and, and | B．or, or | C．and, or | D．or, and |
.Why did you take a taxi____you could come here by bus?
| A．while | B．unless | C．when | D．until |
.She was such a stubborn person that she would die ____she would admit she was wrong.
| A．when | B．until | C．after | D．before |
. Reality is not the way you wish things to be,nor the way they appear to be,_____the way they actually are.
| A．as | B．or | C．but | D．and |