问题
选择题
They had to operate _______his arm because it was broken in two places.
A．with
B．/
C．at
D．on
答案
答案：D
考查固定搭配。在身体哪个部位做手术，要用operate on结构，所以选D。
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They had to operate _______his arm because it was broken in two places.
A．with
B．/
C．at
D．on
答案：D
考查固定搭配。在身体哪个部位做手术，要用operate on结构，所以选D。