why don't we go sailing?

why don't we go sailing? why don't we . why don't we go to the beach?怎样回答 Why don't we go hiking this weekend. why don't we go to plant trees this weekend why don`t we go to the new restaurant? Why don't we go hiking this weekend? 将why don't we go fishing?改为同义句 why don't we go to the zoo 1.why don't we go boating (改为同义句) why don't we go to the cinema同义句 why don't we sleep?