Marry is no different from any otherteenage girl, but she has given enough thought __________ her future career.

－Miss Jones once _________ music at a local college for ten years and now is an actress.－No wonder I often hear her sing some pop songs

Was it______ Tom’s carelessness______ your keys were lost?

Is there ___________ left in the fridge —Only some eggs.

Are these your books –Yes, B。