Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉).
A. come up with B. look forward to
C. talk about D. give up
I study for a test ___________ working with a group.
A.in B.by
C.on D.with
The rest _______ the money _______ to be sent to him.
A. of; are B. of; is
C. /; is D. /; are
What method can you think of _________ with these broken computers?
A. to deal B. dealing
C. deals D. Deal
— Jenny is a quiet girl, she likes playing _____ violin, but she hates playing _____ soccer.
A. the, the B. /, the
C. /, / D. the, /
—The air pollution is terrible.
— It will be worse ________ we take action to protect the environment.
A. if B. unless
C. until D. when