How is Lucy getting on with her lessons?
She won't catch up with others____ she studies harder.( )
unless
as soon as
if
--- Who’s singing in the bathroom? --- It ________ be Mr. Brown. Nobody sings like that except him.
—You_________ be happy with the strong public support you’ve received. —Yes, you’re right. I’m really excited.
()—Sandy, we need an actor for the action movie. __________ you play kungfu? —Sorry, I can’t.
---Who is making much noise? ---It ____ be Timmy. He is sleeping now.
-- Must I write down all the new words now? No, you_______