Since then ________a member of the family and never __________ fromthem．A.have I bee；will I separateB.have I bee；I will separateC.have I been；will I be separatedD.have I been：I was separated
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C解析以sincethen为标志，此句应用现在完成时态；have后接持续性动词，bee为中止性动词；never为标志，应用倒装句。