------a teacher in a university,it is necessary to have at l

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------a teacher in a university,it is necessary to have at least a master's degree.
A.to become B.become C.one becomes D.one becoming
答案是A,想知道这么判断就选A了,为什么,这里考查的是非谓语动词的用法.

换个语序就可以了
it is necessary to have at least a master's degree------a teacher in a university
显然应该填to become
这里的to become a teacher in a university 做主语,用becoming应该也可以,但题目中没有这个选项
而CD中都有one,有sb的一般会有for出现,而题中没有,因此只能选A

------a teacher in a university,it is necessary to have at l To become a teacher in a university.It is neccessary to have 11、It is quite necessary for a qualified teacher to have goo It is quite necessary for a qualified teacher to have good m It is not necessary to have a new building in our school.的同义高手帮忙改英语作文It is very necessary to be a good university studen He thinks that it necessary for a teacher to have the sense_ To become a teacher im a university,it is mecessary to haue Tom's father is a teacher in a university [ ]Beijing. Love a person in the end it is necessary to adhere to it? 英语翻译In order to bid on a horse it is necessary to complete a It is necessary to have _ test.A.third B.the third C.a third