第二部分：英语知识运用（共两节, 满分45分）
第一节：单项填空（共15小题，每小题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，并在答题卡上将该选项的标号涂黑。
21．—Wonderful speech?
—_____, it was a complete waste of time.
A．Just so-so B．No way C．On the contrary D．Not a little
22．—Did you attend your son's graduation ceremony yesterday?
— I______, but I had to go to an important meeting.
A．used to B．ought to C．must have D．should have
23．—Nobody will ever know who stole the car.
—I don't think so．The thief______ and is being questioned by the police.
A．has caught B．has been caught
C．is catching D．will be caught
