Grandpa has changed a lot.- So he has. He spends more time than he used to ______ gameswith the children.

I simply couldn’t understand how it _____ that you did so much work within such a short time．

Where is Tom? We can’t find him anywhere. —Perhaps he_____ home.

It’s said that __________ people died from car accidents in 2011. –How terrible!

There is going to _______ a football match in our school.