--Are you ________ the dark? --Oh, yes. I always go to sleep with the light on.
Listen!What’s happening ? Oh, it might be a girl ______in the next door.
Let's go _____, OK?
Not only I but also Tomfond of watching television.
—________ English book is this? —Maybe it is Lucy's.
Yesterday something ________ happened. We didn't know what it was.