Now the air in our city is _______ than it used to be.Something must be done to stop it.
Nick, would you mind ______ those old jeans? They look terrible.
Who is the man ______ is reading a book over there?
–Will the new iphone cost a lot? --I ______ think so. Apple’s products are usually expensive.
The last time I ______ to the cinema was two years ago.
John had a short walk after lunch, ______?