Last weekend I didn’t _______ any cows but I ______ some horses.
Little Tom has got a lot of birthday presents, but he isn’t able to take all of them ___.
We can have ___ blue sky if we create ___ less polluted world.
-----Did you notice him come in? -----No. I _____ a football game.
You should return the digital camera to Sally ________she will get angry.
He couldn't _________an answer when I asked him why he was late.