游客
题文

Great as Newton was, many of his ideas _______ today and are being modified by the work of scientists of our time.

A.are to challenge B.may be challenged
C.have been challenged D.are challenging
科目 英语   题型 单选题   难度 较易
知识点: 动词语态
登录免费查看答案和解析
相关试题


——May I put my luggage on the seat beside you, sir?
——____.

A.Sure, with pleasure B.Okay, please yourself
C.Well, never mind D.Yes, help yourself

What he ____ ,to be frank, ____ please us present.

A.does; do B.does; does C.do; do D.do; does

The company has a free long-distance telephone number_____ customers may call with any questions they have about the products .

A.when B.so that C.while D.as

I know the man ____chance, but I have never spoken to him.

A.with B.on C.for D.by

---Must I go to work with you?
--- No, you_____. Linda ______ go with me.

A.mustn’t ; can B.can’t ; has to C.daren’t ; should D.needn’t ; may

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号