He will go to school by bike ___ on foot.
| A．instead | B．of | C．instead of | D．no |
— They have discussed the problem for hours.
— Have they come to any_____?
| A．end | B．result | C．conclusion | D．Opinion |
— Do you mind my shutting down the radio?
—_____. The good news will be on the air right away.
| A．Of course not. | B．I’m afraid I do. | C．Why not? | D．Yes, just go ahead. |
—John，when will you pay a visit to that place of interest?
—I can’t decide at present. _______.
| A．It just depends | B．It’s up to you | C．Take your time | D．I beg your pardon |
Gun control is a subject _______ Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |
At present, we are studying a total of nine subjects, ________ I think is physics.
| A．of them the most difficult | B．and the most difficult of which |
| C．the most difficult of them | D．the most difficult of which |