13.---Don’t forget to take your cell phone. ---But it’s just been announced that no students__________bring cell phones to school.
I can’t remember when ______ turning point occurred exactly, but it might be ______ summer morning when I was in New York.
—Nancy, can you help me type this report, please? —_______I have a lot of work to do.
Is this the recorder you want________?
He set out early after supper_________ be late for the film.
You’d better put things back______. Otherwise, it will be difficult to find them.