—I saw you come to school by bus this morning. —Oh, I _________ come to school by bus, but it is raining today.
I ______ this black bag in the library. Is it yours?
---Gina’s room is not ____________. ---Yes. Her books are everywhere.
---Where are Bill’s jackets? ---_____________.
---What’s the name _______your dog? ---It’s Molly.
---____________ does he like science? ---Because it’s interesting.