单选题
When Mike’s school called home to inform his parents of his misbehaviour, they were very disappointed__________him.
A、
at
B、
in
C、
on
D、
to
【正确答案】
B
【答案解析】
本题考查固定搭配。be disappointed in sb.意思是“对某人失望”，为固定搭配。故选B。
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