The old man has__ __ useful horse and horse can do a lot of things for him.
The policeman asked him____.
The workers were made _____ the whole day.
I really don’t know _______ .
——Mum, may I have some cakes?----Sorry, there’s _______ left in the box. I’ll go and buy some for you tonight.
“How many students are there in your school?” “ the students in our school ______over two thousand.”