I can guess you were in a hurry. You ＿＿ your sweater inside out.
| A．had worn | B．wore | C．were wearing | D．are wearing |
A big crowd gathered _____ him ______.
| A．to hear; speak | B．hearing; speaking |
| C．to hear; speaking | D．hearing; to speak |
______ is known to us all, China has its own English language newspaper.
| A．It | B．Which |
| C．That | D．As |
It is difficult for any of us to eat better, exercise more, and sleep enough, ________we know
we should.
| A．because | B．even if |
| C．unless | D．before |
The computer is ________ to be one of the greatest inventions of the 20th century.
| A．considered | B．regarded |
| C．expected | D．suggested |
--We________ in advance. Look, this restaurant is almost empty.
--Yes, just in case.
| A．needn’t have booked | B．mustn’t have booked |
| C．didn’t need to book | D．couldn’t have booked |