In order to ______ a good knowledge of English, he gave up his job and went to study in an English training center.
| A．require | B．inquire | C．acquire | D．request |
．（全国卷I 30）. The little boy won’t go to sleep ______________his mother tells him a story.
| A．or | B．unless | C．but | D．whether |
状语从句
（全国卷I 25）. Mary made coffee ________ her guests were finishing their meal.
A. so that B although C. while D. as if
.Teachers recommend parents their children under 12to ride bicycles to school for safety.
| A．not allow | B．do not allow | C．mustn’t allow | D．couldn’t allow |
. If he __________my advice, he wouldn’t have lost his job.
| A．followed | B．should follow | C．had followed | D．would follow |
.（湖南卷23）. You_________ buy a gift , but you can if you want to.
| A．must | B．mustn’t | C．have to | D．don’t have to |