________ you understand this rule, you’ll have no further difficulty.
| A．Once | B．Unless | C．As | D．Until |
.The question has been raised at the meeting________each member country should equally
share the expense of the committee.
| A．what | B．whether | C．if | D．that |
Color TV was first shown in 1929. It took more than two decades,________,until 1951, for color broadcasts to begin in the USA.
A. anyway B. therefore C. otherwise D. though
Tom still thinks that The Hurt Locker is ________ Avatar.
| A．so great a film as | B．as great film as | C．as great a film as | D．as a great as |
Miss Li ________ as a biology teacher for fifteen years in our school, and now she is Party secretary of our city.
| A．has worked | B．worked | C．had worked | D．works |
—I thought Stephanie and Lee were getting married in June.
—No, that’s ________ her cousin’s wedding is.
| A．how | B．when | C．why | D．where |