—George, the poor guy, has just bought a big house! Are you joking?—No. ______.
---Can I use your dictionary? ---______.
Mary is an honest girl; I say it, ________I don't like her.
I prefer to buy a new TV rather than ________ it.
He doesn't know_________ the work by himself.
Oh, boy, why are you killing your time this way? Can’t you find something ________ doing?