AlphaGo’s beating Go grandmaster Lee Sedol 4-1 has ________ an international debate about whether robots will completely take the place of humans.
A. give off B. work out C. set off D. put out
We should protect our environment from being polluted ________ our next generation will enjoy a blue sky and live a healthy life.
A. as if B. so that C. even if D. in case
A recent research shows smoking and drinking ________ with your body’s ability to process oxygen, thus greatly affecting your health.
A. identify B. correspond C. combine D. interfere
We must be in a place of peace and faith, so internal conflict and disbelief do not hold back ________ it is possible for us to achieve.
A. how B. what C. why D. where
In time of anger, do yourself a favor by ________ it in a quiet place so that you won’t be hurt by its flames.
A. releasing B. recovering
C. refreshing D. recycling
—What do you think of his newly-published book?
—It’s the best one he ________, but that’s not saying much.
A. wrote B. is writing
C. has written D. will write
