We are at the library . Please ___ quiet .A．doB．beC．canD．are
题型：不详难度：来源：
| We are at the library . Please ___ quiet . |
答案
| B |
解析
| quiet是形容词，要和系动词连用，且Please ___ quiet是祈使句，要用动词原形开头。所以选B。 |
举一反三
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A. Why not B. Please C. Don’t |
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