I don’t think students should ___ to wear hats in class.初二单项选择I don’t think students should ___ to wear hats in class.A.allow B.allowed C.be allowed D.be allowing我知道选B但是为什么

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Idon’tthinkstudentsshould___towearhatsinclass.初二单项选择Idon’tthinkstudentsshould___towearhatsinclass.A.

I don’t think students should ___ to wear hats in class.初二单项选择I don’t think students should ___ to wear hats in class.A.allow B.allowed C.be allowed D.be allowing我知道选B但是为什么
I don’t think students should ___ to wear hats in class.初二单项选择
I don’t think students should ___ to wear hats in class.
A.allow
B.allowed
C.be allowed
D.be allowing
我知道选B但是为什么

I don’t think students should ___ to wear hats in class.初二单项选择I don’t think students should ___ to wear hats in class.A.allow B.allowed C.be allowed D.be allowing我知道选B但是为什么
选C.
should be allowed to do 应该被允许做.被动态

选c be allowed
should后加动词原型排除b,学生应是被允许戴帽子排除a和d