Whether enough blood is donated could be a(an) ________ of life and death for the accident victims.
| A．concern | B．approach | C．affair | D．matter |
As food is to the body, ______ is learning to the mind.
| A．and | B．such | C．it | D．so |
The question has been raised at the meeting_________each member country should equally
share the expense of the committee.
| A．that | B．whether | C．if | D．what |
Color TV was first shown in 1929. It took more than two decades, ________,until 1951, for color broadcasts to begin in the USA.
A. though B. therefore C. otherwise D. anyway
.Tom still thinks that The Hurt Locker is ________ Avatar.
| A．as a great as | B．as great film as | C．as great a film as | D．so great a film as |
.Miss Li ________ as a biology teacher for fifteen years in our school, and now she is Party secretary of our city.
| A．works | B．worked | C．had worked | D．has worked |