Can you tell me _______ in the future?
—What do cows eat? —They eat__________ grass.
Black broke his leg. He has just had_______ X-ray examination. _______ doctor said he needed _______ operation.
Mary likes ___________, but I ________listening to pop music.
- Please ______ your homework to school tomorrow.
--Can I play computer now? --No, you ______. You _____do your homework first.