Try ________ she might, Sue couldn't get the door open.(2011·全国Ⅰ)
| A．if | B．when | C．sine | D．as |
32. Buses have routes. They ________ and ________ people at different places on the routes.
| A．take on, get off | B．pick up, put off | C．take up; take off | D．pick out; drop out |
31. Nobody believed his reason for being absent from the class ______ he had to meet his uncle at the airport.
| A．why | B．that | C．where | D．Because |
30. People ran out __________ as fire tore through the building.
| A．with vain | B．in rags | C．with one voice | D．with fear |
28. The people had to _______ the new rulers when they lost the war.
| A．take to | B．cater to | C．submit to | D．lead to |
27. People have become aware ______the fact that carbon dioxide, poison to the environment, contributes_____ air pollution.
| A．of, to | B．/, to | C．of, of | D．of, for |