They have made medicine from a new plant _____a cure for fever.
| A．used it as | B．using as | C．and used as | D．used as |
She _______ to go traveling this summer, but some extra work took up all her time.
| A．had been planned | B．has planned | C．was planned | D．had planned |
I shall never forget those years ____ I lived in the country with the farmers, ____ has a great effect on my life.
| A．that; which | B．when; which | C．which; that | D．when; as |
Your behavior won’t be _____ in our house, so you have to be careful!
| A．kept | B．tolerated | C．taken | D．changed |
The way ______ was thought of by him ______ the experiment was similar to the way _____ you carried it out.
A. that, doing, which B. which, of doing, in which
C. what, to do, \ D. it, of doing, that
---I regret _____you John has been fired .
---I can hardly believe my ears .He is such a fine worker .
| A．telling | B．having told | C．to tell | D．to have told |