―What about this red T-shirt? , please.―Thank you. But it's a little too large.
While we _________, we saw a UFO land on a street.
—Would you mind my smoking here?—_________. No smoking here.
There isn’t going to be any pollution in the future, _________?
— Would you like some butter with your bread?— ____________.
It has been two years _________ he came to China.