中文谷BeforeIbeganthisjob,I
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問題詳情：
Before I began this job, I _________ a babysitter for two years.
A. was B. have been C. had been D. am
【回答】
C
知識點：動詞時態與語態
題型：選擇題
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問題詳情：
Before I began this job, I _________ a babysitter for two years.
A. was B. have been C. had been D. am
【回答】
C
知識點：動詞時態與語態
題型：選擇題
