单句改错。 1. Cet up early tomorrow. If don't,you'll miss the first bus. __________________________________________________________ 2. I asked him to see the film,but he didn't want. __________________________________________________________ 3. -Are you a secretary? -No,but I used to. __________________________________________________________ 4. Work hard though young,or you'll regret. __________________________________________________________ 5. You'd better make some changes where is possible when you are reading my paper. __________________________________________________________