Emergency line operators must always _____ calm and make sure that they get all the information they...
2023-01-23 05:28:10 180次 2013届安徽省高二3月月考英语试题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Emergency line operators must always _____
calm and make sure that they get all the information they need to send help.
|
A．grow
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B．stay
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C．appear
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D．become
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