A: Hi Tim! What are you doing this evening ?
B: Not a lot. Actually,I am having a quiet evening at home alone.
A: Why don't you come round to my house ?? I am inviting a few friends over for dinner...
B: I am not sure.I am quite tired .
A: How about tomorrow night ??
B: I am going to the cinema with my brother.
Why don't you come,too??
A: Great !! I'd love to...
