游客
题文

Research shows that humans ______ from selfish to unselfish behavior when they are watched.

A.tell B.switch C.range D.distinguish
科目 英语   题型 单选题   难度 较易
登录免费查看答案和解析
相关试题

I often see lights in that empty house. Do you think I ______ report it to the police?

A.should B.may C.will D.can

--- I don't mind telling you what I know.
--- You ______. I'm not asking you for it.

A.mustn't B.may not C.can't D.needn't

Coal is hard, like a rock and yet it burns, while no rocks ______.

A.do B.does C.are D.is

--- John, where are the cookies? Don’t tell me you ate them all!
--- ______ I couldn’t help it. They were so good.

A.Yes, I did. B.No, I didn’t.
C.Yes, I have. D.Why? Sounds strange!

--- How will I ______ you at the station?
--- Well, I’m wearing a hat and I’ve got a big black umbrella with me.

A.recognize B.notice C.see D.realize

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

粤ICP备20024846号