There is no doubt that eating organic food will make you healthier, ________？

That gentleman, yes, you, once again, _______?

— I wonder ________ you’ll water this kind of flower. ——Every other day.

I don't think she could have done such a stupid thing yesterday, _____?

 —          do you surf on the Internet?—Once every week. I watch some latest news and chat with my pals there.