A greenhouse is a building _______ of glass _______ for keeping plants warm when the outside temperature is low..
| A．made, which is used | B．which is made, is used |
| C．made, being used | D．is made, used |
Advertising is different from other forms of communication in that the advertiser pays for the message .
| A．to deliver | B．delivered | C．to be delivered | D．delivering |
Of the two brothers, Bill is ____ younger one, and he is a quiet boy, _____ that most adults like very much.
| A．a; one | B．a ; the one | C．the; one | D．the ; the one |
Great changes have taken place in that school. It is no longer ______ it was 20 years ago, _____ it was so poorly equipped.
| A．what; when | B．that; which | C．what; which | D．which; that |
There must have been a large number of tourists in Sanya during the past Spring Festival, __________?
| A．mustn’t there | B．haven’t there | C．wasn’t there | D．didn’t there |
he newly-discovered star was named _____ a Chinese astronomer ________his contributions to astronomy.
| A．for; in favor of | B．after; in honor of |
| C．by; in memory of | D．as; in praise of |