tom【】ready to help the old people
问题描述:
tom【】ready to help the old people
is be am are 哪个?
答
is 第三人称用单三形.be 可以说是is ,am ,are的原形,在要添动词原形的时可以用be.
tom【】ready to help the old people
is be am are 哪个?
is 第三人称用单三形.be 可以说是is ,am ,are的原形,在要添动词原形的时可以用be.