阅读下面短文，用括号内所给动词的适当形式填空（必要时加助动词或情态动词）
The old shoes had brought him so much trouble and Johnny decided（1） （throw）them away．He went to the rubbish pit outside the city and（2） （throw）the old shoes into it．“Now they can't bring me more trouble．”he said．He returned home, lay down on his bed and slept．But he had a dog，and the dog often went to the rubbish pit（3） （look）for food．
The dog saw the shoes in the rubbish pit and knew they（4） （be）it's master's．So the dog got the shoes back．When Johnny woke up，he saw the shoes by his bed and he was afraid．He thought，“The shoes（5） （walk）by themselves．They must be thrown away．”and then he made a large fire in front of his house and（6） （put）the shoes on it．Just then，a strong wind（7） （blow），and before long the fire made the house（8） （begin）burning．His neighbor at once came, but（9） （do）nothing．The house burned down, but the old shoes（10） （save）by the dog again．
l．to throw 2．threw 3．to work 4．were 5．can walk
6．put 7．was blowing 8．begin 9．could do 10．were saved