问题: 英语
He got sick last month and () in bed since
then .
A has been
B had been
解答:
He got sick last month and () in bed since then .
A has been
B had been
A
自从那时起，一直卧病在床，立足点是现在。
He got sick last month and (he) has been in bed since then .
用过去完成时的话表明后半句发生在前半句之前。（当然了，本来就不符合这个句型）
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