He promised to be careful and (to) return home early.这句话加to与不加有区别吗?两句是否都正确?

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He promised to be careful and (to) return home early.这句话加to与不加有区别吗?两句是否都正确?
He promised to be careful and (to) return home early.这句话加to与不加有区别吗?两句是否都正确?

He promised to be careful and (to) return home early.这句话加to与不加有区别吗?两句是否都正确?
有区别.在这道题,加 to的话是对的,指的是,promise 两件事情 一个是小心,还有一个是早点回家
如果把to去掉
句子就要改成he promised to be careful and returned home early

当然有区别
to 是与and前面的to be careful对应
如果不加to 就要改成returned