Question

【题目】—What's your uncle?

—He ________ a policeman, but now he is a businessman.

A. was used to beingB. was used to be

C. used to beD. used to being

Answer 1

【答案】C

【解析】

句意：——你的叔叔是干什么的？——他过去是一名警察，但是现在他是一名商人。was used to being习惯是，was used to be被用于，used to be 过去常常是。but前后表示转折关系，but后表示现在的情况，因此but前，表示过去常常，故用used to be。所以本题选C。