The paparazzo revealed the news about Prince William’s love affair to the news agency in exchange __________ a large sum of money.
A. for
B. of
C. with
D. over
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Different forms of artificial intelligence will let robots __________ decisions.
A. to think and to make
B. thinking and make
C. thinking and making
D. think and make
Jean and Jane are very close friends and like to think of each other __________ sisters.
A. for
B. as
C. by
D. at
Driving cars __________ full of excitement but driving lessons __________ rather boring.
A. are ; are
B. are ; is
C. is ; are
D. is ; is
__________ makes you so interested in drawing?
A. How
B. Which
C. That
D. What