—When can I use your computer?
—Never! _______ should you touch it.
| A．At no time | B．In no time | C．At any time | D．At one time |
---Haven’t you finished your report yet?
--- How I regret ________ the weekend _________ TV!
| A．wasting; to watch | B．to waste; to watch |
| C．to waste; watching | D．wasting; watching |
If _______, these injuries can develop into more serious problems.
| A．left untreating | B．left untreated |
| C．leaving untreated | D．are left untreated |
_____ for his mistake, the little boy could not but _____to his teacher that he was wrong.
| A．Blaming; to admit | B．Blamed; admit |
| C．To blame; admitted | D．To be blamed; admitting |
I am trying to work out the problem and I would appreciate_____ if you could turn the music _______.
| A．That; up | B．this; around | C．it; down | D．you; back |
She is not used to _______ like that.
| A．speak to | B．spoke to | C．speaking to | D．being spoken to |