His parents, very poor but______people who never broke the law, were shocked when he was arrested for robbing a bank.
A．serious
B．obedient
C．respectable
D．responsible

A.
A．serious
B．obedient
C．respectable
D．responsible


【参考答案】

C
respectable“可敬的，人格高尚的”；serious“严肃的，严重的”；obedient“顺从的”；......

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