赞题库-背景图

单项选择题

By the end of this year Mr. Smith ______ in our company for exactly three years.

A．is working
B．has worked
C．will work
D．will have worked

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热门试题

单项选择题From this passage, we learn that an e-book ______.

A．can be found in any library
B．can be read directly from the Internet
C．can be read by anyone who has a computer
D．can be read when special software is installed

单项选择题The E-book Reader is used for

A．reading an e-book you"ve downloaded
B．turning a printed book into a digital version
C．downloading an e-book from the Internet
D．copying an e-book onto a portable computer