10 years ago, _________ only one classroom building in our school. And in 10 years, _________ five classroom buildings in our school.
— We don’t have enough meat in the fridge. — I _______ some more in the supermarket soon.
— May I put my car here? — No, you _______. Put it over there, please.
Is there _______ useful on science? I’m looking for information about this topic.
Which is __________, traveling by air or by train?
Nancy is a good student. She studies hard _______ she also likes to help others.