The World Wide Web is ____ computer network that allows ____ computer users to access information for millions of websites via the Internet.
| A．a, the, | B．a, / | C．the, the | D．the, / |
Reading books is very important for developing the students’ understanding of the world,
_______?
| A．is it | B．are they | C．isn’t it | D．aren’t they |
He sat on the sofa, with his arms ________ and eyes _______ on TV.
| A．crossed; looked | B．crossed; looking |
| C．crossing; looked | D．crossing; looking |
_____ you make a promise, you should keep it.
| A．Though | B．Unless | C．Now that | D．Even if |
Every time ______ they met, they would talk several hours together about the persons and things _______ they remembered in the middle school.
| A．that; who | B．when; which |
| C．/; that | D．which; / |
My boss insisted that I _______ the work before ten o’clock tonight.
| A．can finish | B．must finish | C．must have finished | D．finish |