l can't tell whose_______(sign)it is on the paper.用所给单词适当形式填空

l can't tell whose_______(sign)it is on the paper.用所给单词适当形式填空
l can't tell whose_______(sign)it is on the paper.用所给单词适当形式填空

l can't tell whose_______(sign)it is on the paper.用所给单词适当形式填空
signure whose 后面用名词,签名