第二部分 英语知识运用（共两节，满分35分）
第一节 单项填空（共15小题; 每小题1分，满分15分）
21. The operation is ________ success and the patient is now out of ________ danger.
A．a; the B．a; /
C．/; the D．/; /
22. It is the first time he ________ here and now it is high time that he ________ around.
A．come; should be shown B．has come; were shown
C．came; be shown D．came; was shown
23．Now it's been possible for us to be taken into “space”， ________ we can experience weightlessness for a short time.
A．which B．when
C．where D．that
24． ________from the operation, the patient was advised to stay in hospital for another two weeks.
A．Having not fully recovered B．Being not fully recovered
C．Not having fully recovered D．Not fully recovering
25．On rainy days, accidents ________ happen sometimes on steep roads.
A．should B．shall
C．must D．can
