关于which They have invited me to dinner _ is very kind of the

They have invited me to dinner ___ is very kind of them. they have invited me to the party 空格 is kind of them.that ; They have invited us to their party,---is very kind of them they're invited me to the party,--is kind of them It is very kind of you to invite me to dinner.句子成分分析, They _(one的适当形式)invited their parents to have dinner whih th 英语的连词成句1.invited,often,me,dinner,to,he,have.2.book,of,the,th They are very kind to me.to能否换成of? They've invited me to their party,____is kind of them. It is very kind of you -------( have ) breakfast with me When invited me to dinner it's very kind of you to invite us to have a dinner的答语是?