Shall we plant trees tomorrow?和plant trees tomorrow,shall we

Shall we plant trees tomorrow?和plant trees tomorrow,shall we 一样?
plant trees tomorrow,shall we 这个句子本身可对?
A:Hi,Alice!A nice day,isn`t it?
B:Yes.Spring is coming.Plant trees tomorrow，＿
A:Tomorrow?Tomorrow is not a good day for planting trees!
填入一个句子。