_____, your composition is full of mistakes.
| A．Writing carelessly | B．Written carelessly |
| C．Having written carelessly | D．Being written carelessly |
The speaker always talked about difficult things. His ideas hardly _____ to the audience.
| A．got over | B．got through | C．got across | D．got down |
—Why are you standing here?
—I’m waiting for Shirley. She will be back _____.
| A．gradually | B．originally | C．shortly | D．abruptly |
By the year 2020 scientists _____ a lot of research on AIDS.
| A．had done | B．do | C．are doing | D．will have done |
The former manager of the company was said _____ in an organized crime.
| A．to be involved | B．to involve |
| C．to have involved | D．to have been involved |
_____ is commonly believed that the play was written by Shakespeare.
| A．It | B．That | C．What | D．As |