The idea for the new machine came to Mr. Baker ______ to his invention recently.
| A．while devoting | B．while devoted |
| C．while he was devoted | D．while devoting himself. |
— Do you think it's a good idea to make friends with your students?
—________, I do. I think it's a great idea.
| A．Really | B．Hopefully |
| C．Actually | D．Eventually |
Mary couldn’t________ the terrible working conditions in that factory and resigned last week.
| A．catch up with | B．keep up with |
| C．put up with | D．come up with |
Some passers-by witnessed the car accident ______ five passengers were killed, a baby included.
| A．where | B．which |
| C．that | D．when |
— Why do you do volunteer work in the North—West?
— I_____ to improve the lives of the children there through my efforts.
| A．was trying | B．have tried |
| C．am trying | D．tried |
I send you my revised catalogue and price list, ______ you may find something that suits you.
| A．to hope | B．hoping |
| C．hoped | D．hope |