25．—Oh，my God! You_______wear slippers to attend the meeting.
—I’m sorry I forgot there is a meeting．
| A．must | B．should | C．can | D．Shall |
During the Spring Festival, the police are ______ the public safety.
| A．getting through | B．working out | C．watching over | D．looking into |
He is a man of great help, with ________ help you can solve the problem easily.
| A． his | B． which | C． whom | D． whose |
We saw a ________ big snake in the grass yesterday, which ________ all of us to death.
A. frightened; frightened C. frightened; frightening
C. frightening; frightened D. frightening; frightening
— Tom, could you go to the supermarket with me?
— I’d like to, but my homework ______ and I have to hand it in tomorrow.
| A．wasn’t finished | B．won’t be finished |
| C．hasn’t been finished | D．hadn’t been finished |
Special attention should be paid to ________ forests from fires in winter.
| A．protected | B．protecting | C．protects | D．protect |