If his parents are convinced ____ the fact that his son always focuses his mind his study.
| A．of; on | B．of; at | C．by; to | D．on; at |
We should prevent such a silly mistake _____ again.
| A．occurring | B．to occur |
| C．to be occurred | D．from being occurred |
_____ full preparations, we decided to put off the meeting till next week.
| A．We did not make | B．Having not made |
| C．We had not made | D．Not having made |
I’m examining the article he has just finished _____ the possible mistakes in it.
| A．being corrected | B．to correct |
| C．corrected | D．having corrected |
How could he get the plan _____ without any one to support him?
| A．to carry out | B．carry out |
| C．carrying out | D．carried out |
The sun was shining brightly, _____ everything there _____ more beautiful.
| A．making; look | B．to make; looked |
| C．and made; looking | D．and making; be looked |