阅读理解，判断正误。 Sally was fourteen. She studied in a middle school. She liked dancing and singing and spent a lot of time on them. But she hated math and even decided to give it up. Her father was anxious about it. It was Sunday. Sally's father gave a call to his sister who taught math in another school. He hoped she would come and tell his daughter how to learn math. The woman came and said, 'You are a clever girl, Sally. I'm sure you will soon learn math well if you do your best. ' 'I'm afraid I can't. Aunt,' said Sally, 'Girls can't be good at math. ' 'I don't think so,' said the woman. 'I was good at it when I was a girl. You must do more exercises and try different ways to practice doing math problems until you work them out or at least understand them better. Here is a math problem. Please think it over and see if you can work it out. ' 'OK,' said the girl, 'Let me try. ' About an hour later, Sally took the. exercise book to her aunt and said, 'I've tried several times and worked out the problem at last. ' 'Well done!' her aunt looked at her answer and said happily, 'Now you see, math is not as difficult as you thought. ' (     ) 1. Sally tried her best to learn math but  could not learn it well. (     ) 2. Sally spent much more time in singing and dancing than in learning math. (     ) 3. Her aunt didn't think that girls could  be good at math. (     ) 4. The father asked his sister to teach his  daughter how to learn math. (     ) 5. Sally worked out the problem at last.