why don't you replace driving to work with cycling instead?

why don't you replace driving to work with cycling instead? why don't you try chewing gum instead? Why don't you ask Mike to go with us? why don't you go to the movie with me ? Why don't you go to the zoo with why don't we go to a disco instead.instead在这里什么意思 why don't you always have anything to say with me I don't kn why don't you leave with us why don't you have fun with Why don't you talk with Why don't you ask Tom to go with you (同义句)____ _____ _____ T replace with ,instead of区别