早教吧 育儿知识 作业答案 考试题库 百科 知识分享

高考英语单选题情态动词Whilebyregulationshighschoolstudentsnotusecellphonesintheschool,theycanusepublicphonestokeepintouchwithfriendsandfamily.A.mustB.shallC.wouldD.might请解释下为什么不选A

题目详情
高考英语单选题 情态动词
While by regulations high school students ______not use cellphones in the school ,they can use public phones to keep in touch with friends and family.
A.must B.shall C.would D.might
请解释下为什么不选A
▼优质解答
答案和解析
shall not 是不应该的意思.