—Mike, the office is in a mess; it's your turn to clean it up.
—________ I did it yesterday and the day before yesterday.
| A．Don't count on me! | B．Back in a moment! |
| C．Don't fall for it! | D．Get off my back! |
The Great Green Wall will stop the wind from ____ the earth away.
| A．blow | B．blowing | C．blew | D．to blow |
Do you practice ______ English every morning?
| A．speak | B．to speak | C．speaking | D．spoken |
----Boys and girls, will you please ____ the park this afternoon? ----OK.
| A．not cleaning out | B．not to clean out | C．to clean up | D．clean up |
--Excuse me, sir. Look at the sign on the wall “NO ____”.
--Oh, I’m sorry. I’ll never do it again.
| A．PARKED | B．SMOKE | C．SPITTING | D．SMOKED |
John asked David how ____ Christmas.
| A．celebrating | B．to celebrate | C．to be celebrated | D．celebrate |