There are a lot of computers in the lab,and they need professional to make sure they can be in a good state.
| A．operation | B．maintenance |
| C．service | D．advice |
—Xiaoming, you are late again, can you tell me why?
—I was on the half way when it _______to me that I had left my notebook at home, so I have to fetch it.
| A．hit | B．thought | C．occurred | D．struck |
Mr. Peng didn’t mind ________to the party.
| A．being not invited | B．not to be invited | C．not inviting | D．not being invited |
Jackie Chen will __________you at your office sometime tomorrow.
| A．call for | B．call on | C．call off | D．call at |
There are many talented writers waiting_________.
A. to discover B discovered C. to be discovered D. being discovered
I don’t like the way _______Tom speaks to his mother. Which one is wrong?
| A．that | B．in which | C．by which | D．/ |