题目内容

Dan_______methatMars_______aplanetliketheEarth.

A. teach;is
B. teaches;was
C. taught;was
D. taught;is

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Please_______aseatand_______aboutouragreementnow.

A. have;let’stotalk
B. had;let’stalk
C. have;let’stalk
D. had;let’stotalk

Always_______tolistentoyourbossevenifyou_______withhimorher.

A. remember;notagree
B. remembering;notagree
C. remember;don’tagree
D. remembering;don’tagree

There’s_______smokinginthisofficebuildingand_______parkingnearthebuilding.

A. not;not
B. no;not
C. no;no
D. not;no

一旦设置了屏幕保护程序的口令,()

A. 进入屏幕保护程序必须输入口令
B. 退出屏幕保护程序必须输入口令
C. 进入、退出屏幕保护程序必须输入口令
D. 进入Windows必须输入口令

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