He told us that the best way to ______ respect was to devote ourselves to ______ high grades.
#71456
A
earn; achieve
B
earn; achieving
C
earning; achieve
D
earning; achieve
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They thought about it for a long time, but still could not ______ a solution.
#66797
A
come over
B
come along with
C
come out
D
come up with
Many approaches have been _______ to control the spread of H7N9 Bird Flu. 
#64838
A
adapted
B
employed
C
negotiated
D
accessed
Everything he said then was _____ by what happened later.
#81805
A
identified
B
signified
C
noticed
D
verified