____forthedoctor"scarefultreatment,he____tilllastyear.
Aifitisnot;cannothe
Bwereitnot;coundnotlive
Chaditnotbeen;coundnothavelived
Diftheywerenot;couldnotlive为什么选C不选B呢,我觉得If省略了,两个都可以啊
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