摘要：( ) – How long have you known the doctor ?– he helped me three years ago. A. When B. Before C. Because D. Since
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---How long have you known the doctor ?
---_________he helped me three years ago.
A. When B. Before C. Because D. Since
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—How long have you known the doctor ?
— he helped me three years ago.
A. When B. Before C. Because D. Since
查看习题详情和答案>>
—How long have you known the doctor ?
— he helped me three years ago.
A. When B. Before C. Because D. Since
查看习题详情和答案>>