Necessary action must be taken to make sure that students can feel and be safe at school

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• 【鸡毛】1.Necessary action __ to make sure that student can feel and be safe ai school.A can be taken B must take C must be taken D may be taken2.I think___of the materials i listened to at the beginning of the exam__easy.A three fourths;is B three fourths;are3.They are talking about the novel ___they read yesterday.A./ B whose C what D whom
• Necessary action must be taken to make sure that students can feel and be safe at school请问这句话是什么意思?
• 【鸡毛】1.Necessary action __ to make sure that student can feel and be safe ai school.
• Necessary action must be taken to make sure that students can feel and be safe at school
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