—________ hard work it is!—Yes, but he seems _____ to do it.
--- Mum, Can I play the game for a moment?--- No, you have finished your homework.
--- Is Mr. Smith in his office now?--- No, he there. I saw him in the library a minute ago.
--- Nancy, apple on the table is for you.--- Thanks. An apple a day keeps the doctor away.
_______ you study harder, you’ll fall behind others.A. If B. Unless C. Until
She _______ the computer since 2001.A. has had B. has bought C. had