Bob ______ his bedroom by himself. Look! How clean it is!A. sweeps
题型：不详难度：来源：
Bob ______ his bedroom by himself. Look! How clean it is!
A. sweeps B. swept C. has swept |
答案
| C |
解析
试题分析： have/has+动词过去分词，构成现在完成时，Bob是第三人称单数，用has+过去分词。sweep的过去分词为swept。句意：鲍勃自己打扫了卧室，看，多干净啊！故选C。 |
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