Our playground is not so tidy and beautiful as before, students must ____ dirty
题型：不详难度：来源：
Our playground is not so tidy and beautiful as before, students must ____ dirty things on it. | A．be stopped to throw | B．be stopped throwing | | C．stop to throw | D．stop from throwing |
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答案
| B |
解析
试题分析：句意：我们的操场不如以前干净整洁，必须阻止学生乱丢杂物。Stop to do sth停下来去做某事；stop doing sth停止做某事；stop sb from doing sth阻止某人做某事。结合句意必须阻止学生乱丢杂物，而学生students作句子主语，故用被动语态。所以选B。 |
举一反三
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