In my opinion, all Mr White ____ good to his students in his class at present. He is very strict in their study.
---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?