---____you like computer games?---Yes,____

_______have you been to Tianjin?---Twice.

Many of your classmates dislike having to stay up late doing their lessons, _____? 

--- _    ____ does Kate live from her office？---It’s half an hour’s ride.

Since it will take years to know the effect of genetically modified food, it’s more sensible to give it a second thought before we eat it,        it?