—What does the sign over there read?―“No person ______ smoke or carry a lighted cigarette，cigar or pipe in this area．”
| A．will | B．may | C．shall | D．must |
---How about going abroad for a trip this summer?
---_______ - we have been heavily in debt.
| A．Better forget it | B．Sounds great | C．I can’t agree more | D．It’s up to you |
— I put him down for a well-educated man.
—______ ?
— I mean that he's a well-educated man.
| A．I beg your pardon | B．Speak louder, will you |
| C．What’s that | D．Will you repeat word for word |
The silence of the library is sometimes broken by a sudden cough or the sound of pages______.
| A．turning | B．turned | C．being turned | D．having turned |
Wang Pin is an advanced worker in our company. He _______ for four years in Yangzhou University.
| A．studied | B．has studied | C．had studied | D．has been studying |
When it______ air pollution, Beijing faces the three “C” s-----cars，coal and construction，which lead to Beijing's thick air pollution.
| A．refers to | B．comes to | C．happens to | D．speaks to |