— You should be careful when ________.
— Yes, I will. I’d like to know when ________ to have a rest.
| A．driving; stopping | B．driving; to stop |
| C．to drive; stopping | D．to drive; to stop |
—Could you please ________ the window? It’s cold outside.
—Oh, I’m sorry.
| A．not to open | B．not open | C．don’t open | D．to not open |
Mary often helped her mother ________ out the trash last year.
| A．takes | B．took | C．taking | D．take |
Next put all the ingredients in a big bowl and ________.
| A．mix up them | B．mix them up | C．mix it up | D．mix up it |
What ________ the weather ________ like tomorrow?
| A．is; going to | B．is; \ | C．is; going to be | D．is; be |
She saw a lot of boys ________ football on the playground when she walked past (经过).
| A．play | B．to play | C．played | D．playing |