I would like to invite you to the party next weekend.
Would you like to have lunch with me?
We willl have a picnic this weekend,I hope you can join us!
How about come to my home tomorrow?
Could you come and see me sometime?
Would you care to be my guest？
What time can I expect you?
Thank you for your invitation,I am glad to be there.
I like that very much.\Sounds wonderfull.
Of course I will come.
It's very nice of you to invite me.
I'll come around later tonight.
I'll call on you in a week.
I am sorry,but I will have a class then.
I'm awfully sorry,but......\I'd really want to go1,but I afraid...
Thank you,but I really have an another engagement.