---Where is my reference book? It was here a moment ago.
---Someone ______ it by mistake.
| A．should have taken | B．must take |
| C．might take | D．must have taken |
UN official is said to visit our province next month to investigate ________ problem of housing and education.
| A．The; the | B．The; a | C．An; the | D．A; the |
He always tells ______ lies, to tell you ______ truth, I don’t believe what he said at all.
| A．不填；不填 | B．the; the | C．不填；the | D．the; 不填 |
That is the best way you thought of _______ into trouble.
| A．stopping some young people to get |
| B．to prevent some young people getting |
| C．keeping some young people getting |
| D．preventing some young people getting |
Because of the heavy snow, some distant Japanese villages are ______ from the rest of the country.
| A．cut off | B．cut out | C．cut down | D．cut down |
— Another cup of coffee?
— No, thanks. I think I’d better ______ for the airport immediately.
| A．set up | B．set down | C．set off | D．set about |