He ______ the key, so we ______ into the office.
| A．hadn’t left; can’t | B．didn’t leave; couldn’t have got |
| C．hadn’t left; couldn’t get | D．hasn’t left; couldn’t get |
My sister used to be fond of ____ table tennis.
| A．play | B．played | C．playing | D．to play |
We all considered Mr Zhao ____ teacher.
| A．be the best | B．to be the best | C．being best | D．being the best |
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 |