问题
选择题
My brother is very good ___ ping-pong.
A．in
B．for
C．at
D．on
答案
答案：C
is good at是固定搭配，意思是：专长于….。
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My brother is very good ___ ping-pong.
A．in
B．for
C．at
D．on
答案：C
is good at是固定搭配，意思是：专长于….。