__________terrible luck he had yesterday!
Could you tell me how long do you _________ on your homework every day?
The number of the students in our school ___ 1,000, and a number of them ___ boys.
---Could we have _______ bread, please?---Sorry, we have ___________.
She says she will come to visit our school _____ next week.
---May I go home right now?---No, you____. You must finish your work first.