comparision of adjectives and adverbs

Put each adjective or adverb in the correct form.
  1. Mary doesn’t make as mistakes as Jennifer. (many)
  2. These apples taste than ours. (good)
  3. She speaks than her younger brother (fast)
  4. They waited for the bus than her parents. (patient)
  5. The children ran than their parents. (quick)
  6. Linda is than Ilse. (small)
  7. Jack is as as John. (tall)
  8. Bill doesn’t play soccer as as Brian. (good)
  9. Harry writes than Sally. (slow)
  10. Kim has got a voice than Jane. (good)
  11. Jill listens than her classmates. (attentive)