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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. - We could invite Barbara to the barbeque this Saturday.
- Yes, ______
A. that\'s all right. B. why not? C. I wonder. D. why?
22. With ______ growth of the Internet, computer security has become ______ major concern for businesses and governments.
A. the; a B. the; the C. 不填; the D. the; 不填
21. - We could invite Barbara to the barbeque this Saturday.
- Yes, ______
A. that\'s all right. B. why not? C. I wonder. D. why?
22. With ______ growth of the Internet, computer security has become ______ major concern for businesses and governments.
A. the; a B. the; the C. 不填; the D. the; 不填
