Doctors recommend that all children ________ vaccinated against measles(����). A. should B. could b...
2023-01-26 11:56:02 202次 2010年河南省高二下学期期中考试英语 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Doctors recommend that all children ________ vaccinated
against measles(����).
A. should B. could be C.
are D. be
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