问题描述：
快I am not a doctor .I a helping
I am not a doctor.I a helping hand until the medical workers come A.am just lending B .have just lent C.just lent D.will just lend.
I am not a doctor.I a helping hand until the medical workers come A.am just lending B .have just lent C.just lent D.will just lend.
问题解答：
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