Once your brain realizes that working time is scarce(稀少的), you suddenly become a lot more _________ because you have to be.
A) efficient
B) important
C) fancy
D) grateful
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He tied her up and ________ her with a six-inch knife.
A) chased
B) contacted
C) threatened
D) comforted
People who want to lose weight should _________ things like chocolate and cake, because those carry large amounts of calories.
A) resist
B) relevant
C) rely
D) pick
If we can find another planet with conditions ________ to those on the earth, we find another possible home for human beings.
A) familiar
B) similar
C) favorite
D) critical
The President didn’t show up in the meeting. The official reason given for the President’s ________ was sickness.
A) importance
B) doubt
C) absence
D) disagree