_______ ambassador who did his best to prevent the war is of _______ benefit to the place.
| A．An; 不填 | B．The; a |
| C．The; 不填 | D．An; a |
The teacher asked more _____ to prevent the students’ eyes from being injured.
| A．to do | B．done | C．to be done | D．being done |
The beach is so beautiful that it is worthwhile, I think, _____ for a short holiday.
| A．of going | B．to be going |
| C．your going | D．you to go |
“Well, I’ll tell you a secret ...” said the boy, with his mouth almost _____ my ear.
| A．touched | B．touching | C．touch | D．to touch |
They looked forward with hope _____ a chance to receive further education.
| A．for getting | B．of getting | C．to get | D．to getting |
I regret _____ hard at school, or I would have succeeded in passing the exam.
| A．not to work | B．having not worked |
| C．to have not worked | D．not having worked |