He ___(be)an orphan,the nurse looked after him carefully.用适当形式填空

问题描述:

He ___(be)an orphan,the nurse looked after him carefully.
用适当形式填空

was 不过句子不通啊

wants to be

being
本句主语是护士,前半句是独立主格结构,有另一个主语He出现,但动词须用非谓语形式,所以was改为being

was (后面的时态是一般过去时looked,故填was与之对应)
句子是通顺的。