单项选择题

Please excuse me if I have left any of my questions ______

A．to be unanswered
B．not to answer
C．unanswered
D．being unanswered
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单项选择题
The bus moved slowly in the thick fog. We arrived at our ______ almost two hours later.
A．designation
B．destiny
C．destination
D．dignity
单项选择题
Violence is just one of the many problems ______ in city life.
A．abundant
B．inherent
C．substantial
D．coherent
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