书面表达。
鲍勃是个粗心的男孩子。一天，他把自行车钥匙丢了，汤姆帮他找。后来怎样呢？
Bob, not, careful, lose, can not, home, friend, Tom, here and there, but, not, have to,
with, on him, arrive home, too tired, do
Bob is not a careful boy. One day he lost the key to his bike and could not go home by bike / ride home.
His friend Tom helped him look for the key here and there, but they did not find it. So Bob had to go home
on foot with his bike on him. When he arrived home, he was too tired to do anything.
（答案不唯一）