第二部分语言知识运用
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，并在答题卡上将该项涂黑。
21．Some of the exercises appear to be _____ones that you have done, but after taking____second look, you will find that they are different.
A. /, the B. the, the C. the, a D. /, a
—Hello! This is travel agency office．
—Hello! I'd like to book two tickets for Qing Western Tombs．
—．
| A．Of course, please | B．At your service |
| C．My pleasure | D．A moment, please |
— What has made him unhappy recently?
— __________ alone to do the house work．
| A．Left | B．Being left | C．Having left | D．To leave |
His car ran over another in the highway! Too horrible! _____ he is safe now—that's the main thing．
| A．Anyway | B．Besides | C．Otherwise | D．Therefore |
He pretended not to care but that remark _________ his real opinion on the matter.
| A．put away | B．put out | C．gave away | D．gave out |
Tom told us all that he said at the meeting was really true．
| A．that | B．all | C．what | D．which |