日语
韩语
法语
德语
西班牙语
意大利语
阿拉伯语
葡萄牙语
越南语
俄语
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泰语
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
21. Among all the types of painting, I have ______ preference for _________abstract painting.
A. a; a B. a; the C. the ; a D. the; the
22. It was ordered that no smoking ______ in the library.
21. Among all the types of painting, I have ______ preference for _________abstract painting.
A. a; a B. a; the C. the ; a D. the; the
22. It was ordered that no smoking ______ in the library.
