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
22．She used to be terribly shy, but a year abroad has completely _________ her.
A. transmitted B. transported C. transplanted D. transformed
