------Which do you prefer to live in, the city or the countryside? ------Of course in the countryside. The air is much _________.

—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.

Which do you like      , tea or coffee?

_______ points you get, _______ levels you’ll go to.

--- “ The T-shirt is too big for me, would you mind giving me a ___ one ?”---“Ok, here you are.”