He used to ____his teaching when he was young.A.devote toB.be devoted toC.devoting toD.being devoted

题目简介

He used to ____his teaching when he was young.A.devote toB.be devoted toC.devoting toD.being devoted

题目详情

He used to ____his teaching when he was young.
A.devote toB.be devoted toC.devoting toD.being devoted to
题型:单选题难度:偏易来源:不详

答案

B
used to 接动词原形表示”过去常常”;”致力于”应该是devote one-selt to 或be devoted to…,所以答案为B。

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