根据短文内容，判断正（T）误（F） 。
Did you see a l, 000-pound pumpkin? Have you seen a big pumpkin like that? Howard Dill did.
He is a world famous pumpkin grower. Most pumpkins weigh from 15 t0 30 pounds, but Howard Dill
has bigger pumpkins and they weigh much more. Every year, he meets other pumpkin growers from
across North America. They have competitions to see who can grow the biggest pumpkin.
People started to grow big pumpkins more than 100 years ago. About twenty years ago,Howard
Dill wanted to have a competition. He brought his biggest pumpkin to the competition.It weighed 438
pounds. Two years ago another pumpkin grower set a world record. His pumpkin weighed l,061
pounds!
( )l. Howard Dill is a world famous pumpkin grower.
( )2. Most of Howard Dill's pumpkins weigh from 15 to 30 pounds.
( )3. People started to grow big pumpkins about more than eighty years earlier than Howard did.
( )4. Howard Dill grew the biggest world pumpkin and held the world record.
( )5. Another grower's pumpkin was much lighter than Howard's.
创伤引起的牙槽骨吸收常为（）