We’ve never had any problem with our car in the past three years ; it’s highly r

游客2023-09-25 23

问题 We’ve never had any problem with our car in the past three years ; it’s highly reliable in (operate)

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答案 operation

解析本题考查固定搭配。in operation运转，操作。关于operation的词组：come into operation开始运转。

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Theywerebelieved(discuss)______theproblembeforehand.tohavediscussed