【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 taken
2.I think___of the materials i listened to at the beginning of the exam__easy.
A three fourths;is B three fourths;are
3.They are talking about the novel ___they read yesterday.
A./ B whose C what D whom