In those days, we had no phones, so we have to keep in touch _____ writing often.
| A．with | B．of |
| C．on | D．by |
—Why, Jack! Someone seems to have called you over there.
—Yes? I ________ that.
| A． am not realizing | B． haven’t realized | C． didn’t realize | D． don’t realize |
—I wonder how much you charge for your services.
—The first two are free, _______the third costs ＄30.
| A． while | B． until | C． when | D． before |
—When did you ________ to do the work?
—Two months ago, we are through 80% of it at the moment.
| A． set off | B． set about | C． set up | D． set out |
Mr. Smith owns ______ collection of coins than anyone else I have ever met.
| A． larger | B． a larger | C． the larger | D． a large |
At the end of the meeting, it was announced that an agreement ______.
| A． has reached | B． had reached | C． has been reached | D． had been reached |