第二部分：语言知识运用（共两节，满分45分）
第一节：单项填空（共15小题，每题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑
21.To our joy,the operation is ____success and the patient is now out of____danger.
A.a,the B.a,/ C./,the D./,/
--- Have the police broken the case?
---Yes, five men, including a pair of twins, have admitted robbery at the store, but _______ murder.
| A．denied | B．refused | C．rejected | D．declined |
No matter ______ the CRH accident in Wenzhou, it had and will have much warning significance.
| A．how the investigators said caused |
| B．what the investigators said caused |
| C．why the investigators said caused |
| D．the investigators said how caused |
I should apologize to you for failing to visit you last week, but I've been very busy_____ the past few months.
| A．since | B．before | C．among | D．over |
“As you need a day or two to ______ jetlag, you'll have a light schedule for today and tomorrow.” said my boss.
| A．go over | B．get over | C．turn over | D．take over |
Students are required to go out in couples, especially in the evenings, with friends ______ they get into trouble．
| A．even if | B．if only | C．in case | D．when |