23.You may use the room as you like ___ you clean it up afterwards.
A.so far as B.so long as C.in case D.even if
22.It ______ have been Tom that parked the car here, as he is the only one with a car.
A.may B.can C.must D.should
第一节 单项填空(共15小题;每小题1分,满分15分)
请从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该选项的标号涂黑。
21.What____ pity that you couldn’t be there to receive____ prize!
A.a;a B.the; a C.a; the D.the;the
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