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’ve just moved into a bigger house and there’s a lot to do. Let’s _________ it.
| A．keep up with | B．do away with | C．get down to | D．look forward to |
t is not how much we do but how much love we put into ____we do____benefits our work most.
| A． That , who | B．Which, that | C．What , that | D．What, what |
——Yesterday, I didn’t see Ben at the party.
—— You _____ him. We just came back from Beijing this morning.
| A．mustn’t have seen | B．needn’t have seen |
| C．couldn’t see | D．can’t have seen |
— Are you satisfied with what she has done?
— Not at all. It couldn’t be _______.
| A．so bad | B．any worse | C．much better | D．the best |
Some modern teaching equipment as well as hundreds of computers _______ to ten Hope Schools in South China．
| A．were sent | B．was sent | C．have sent | D．had been sent |