-It's such a perfect day. Say, why don'we pack a picnic lunch and go to the park? We can invite some other people to come to—Nancy, Rob, charlotte, Ben, their kids…
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-Anything is fine with me.

A.That's one of the best ideas l've heard in weeks. What should we take on the picnic?
B.I'd like to very much，but I have to prepare for my examination.
C.That's great！Shall we go to the seaside for a walk?