Ответ:

  1. Mrs. Gray was nice. Mr. Lehman was nicer than Mrs. Gray, but Miss Yates was the nicest teacher in the school.
  2. Mrs. Gray was kind to the children. Mr. Lehman was kinder than Mrs. Gray, and Miss Yates was the kindest of them all.
  3. Polly is tall, but her mother is taller than Polly, and her father is the tallest of all.
  4. Polly’s math lessons are hard. Her English lessons are harder than her math lessons, and her history lessons are the hardest of all.
  5. Polly can run fast, but her father can run faster than she can, and her big brother can run the fastest of all.