Do you know if he ___to our party? —I think he will if he ___free tomorrow.

I don’t know ______ he will come tomorrow. ______ he comes , I’ll tell you.

Jack’s mother was twenty-seven when he was born. Jack is eleven this year. How old is his mother?

Here are some apples. You _________ take any one if you like.

The tall building has ______ floors. And Tony lives on the ______ floor.