---Each of the students working hard at their lessons ________ the book.
---- So have I.
A.is reading B. has read C. read D. reads
--- I let my secretary call you several times. Do you know that?
---- I _______ in a meeting. I’m sorry.
A. had been B. was C.am D. have been
He finally refused to ________ his plan of travelling the world.
A. give off B. give up C. give to D. give in
I hope that ________ that I’ve been able to do is of some use to you.
A. a few B. the few C. a little D. the little
We all admired her ______ the way she saved the children from the fire.
A. to B. for C. in D. at
We should not ________ economic growth that will harm the environment.
A. solve B. promote C. challenge D. reduce
