找错并改错。 (     ) 1. She hasn't heard a letter from her friend for a long time . A                 B       C                           D (     ) 2. I don't know why Kate hasn't replied my letter for half a month . A                       B                   C          D (     ) 3. While feeling sad, I can't decide who to talk . A        B                                 C      D (     ) 4. Look , there are someone painting the wall in the fitting room . A         B                        C                             D (     )5. Everyone of us considers Tom the cleverest boy in our class. A         B         C                       D