.
—Is it OK if I have another cup of coffee?
—Of course, _______.
| A．no problem | B．don’t worry | C．no hurry | D．help yourself |
-- 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 |
His parents died when he was young, and he was_____ by his aunt.
| A．brought out | B．brought in | C．brought about | D．brought up |