They were __________ leave their country.
A. required
B. compelled
C. made
D. forced to
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The police haven’t been able to __________ the mysterious bank robbery.
A. solve
B. solution
C. answer
D. settle with
Children learn from their __________.
A. weaknesses
B. faults
C. mistakes
D. responses
It is __________ that he hasn’t come to the party.
A. anxious
B. curious
C. anxiously
D. curiously
Speech is __________; silence is ________.
A. silver; copper
B. gold; copper
C. silver; gold
D. dollar; gold