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 |
We must work hard toa good knowledge of English.
| A．acquire | B．catch | C．hold | D．take |
_________ by the beautiful scenery of the west Lake, the foreigners decided to spend another two days in Hangzhou.
| A．Attracting | B．Attracted | C．To be attracted | D．Having Attracted. |
Our class _______ 55 students at that time.
| A．consisted of | B．consists of | C．made up of | D．was consisting of |
As a film star she was a success, but as a wife she was ______ failure, so their marriage ended in ______ failure.
| A．/; / | B．/; a | C．a; a | D．a; / |
— Can I look at the menu for a few more minutes before I decide?
— Of course. ____, sir.
| A．Enjoy yourself | B．Make yourself at home |
| C．Take your time | D．It doesn’t matter |