中文谷BeforeIbeganthisjob,I
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问题详情：
Before I began this job, I _________ a babysitter for two years.
A. was B. have been C. had been D. am
【回答】
C
知识点：动词时态与语态
题型：选择题
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问题详情：
Before I began this job, I _________ a babysitter for two years.
A. was B. have been C. had been D. am
【回答】
C
知识点：动词时态与语态
题型：选择题
