Many people worry that air pollution might changes in the weather around the world.
| A．add to | B．lead to | C．turn to | D．belong to |
The old man, for _life had been very hard, donated his possessions to poor villages in Anhui．
| A．whose | B．whom |
| C．which | D．that |
—Why do you look so upset, Linda?
—There are so many troublesome problems____．
| A．remaining settled |
| B．remaining to be settled |
| C．remained to settle |
| D．remained to be settled |
I lost the key to my dormitory．Could you ____ for the night?
| A．put me up | B．take me up |
| C．set me up | D．bring me up |
—Silly me! I forgot the color of my luggage．
—What about over there?
| A．the one | B．one |
| C．that | D．those |
—The concert won' t start till seven．Why____ so early?
—You know I don' t want to be at the traffic there．It' s terrible during the rush hour,
| A．are you leaving |
| B．do you leave |
| C．were you leaving |
| D．had you left |