The World Wide Web is sometimes jokingly called the World Wide Wait because it _________be very slow.
| A．should | B．must | C．will | D．can |
—Why don’t we go and have a cup of tea?
—______.
| A．Yes, I think so | B．No, I don’t think so |
| C．That’s a good idea | D．Yes, we had |
-- Guess what? I have got A for my term paper.
-- Great! You ___ read widely and put a lot of work into it.
| A．must | B．should | C．must have | D．should have |
We’ll look into the case as soon as we can. Just be ________, please.
| A．slow | B．silent | C．patient | D．comfortable |
How the big forest fire has ________ remains to be a mystery.
| A．broken up | B．broken out | C．cut down | D．turned up |
I’m waiting for the mail. Do you know _____ it will arrive?
| A．when | B．where | C．how | D．what |