-Is that Mary?-No, it _______be her. She has gone to Tokyo.
---________ will your head teacher return from the USA? ---In two days.
Everyone has his own dreams, but not all the dreams can always _________.
--Tom, do you know there _________ a sports meeting next Thursday? --Sorry, I forgot to tell you.
I think every one should know it will be bad for your health to eat _______ food and take _________ exercise.
Behind bad luck comes good luck. So something good happened _____ you..