She can’t help ______ the house because she’s busy making a cake.
| A．cleaning | B．to clean | C．cleaned | D．being cleaned |
—How about your journey to Mount Emei?
—Everything was wonderful except that our car _________ twice on the way.
| A．slowed down | B．broke down | C．got down | D．put down |
—Do you mind my opening the window? It’s a bit hot in here.
—, as a matter of fact.
| A．Go ahead | B．Yes, my pleasure | C．Yes, I do | D．Come on |
The traffic is heavy these days, I arrive a bit late, so could you save me a place?
| A．can | B．must | C．need. | D．might |
For a moment nothing happened. Thenall shouting together.
| A．voices had come | B．came voices | C．voices would come | D．did voices come |
Some people fear that ________ air pollution may bring about changes in _______ weather around the world.
| A．/; the | B．the; / | C．an; the | D．the; a |