The head of marketing was concerned ________ the major changes in the business e

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问题 The head of marketing was concerned ________ the major changes in the business environment.

选项 A、to
B、in
C、that
D、about

答案 D

解析将其当作“be+形容词”的固定搭配来记忆。be concerned about sth．意为“关心某事，记挂某事”。

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