阅读下面短文，用括号内所给动词的适当形式填空 (必要时可加情态动词或助动词)。
Tom is a boy of fifteen. His parents ______(die) two years ago, and he had to make a living by himself.Now he ______(work) as a servant at Mr. Jackson's. He works hard and Mr. Jackson is pleased with him. Mr. Jackson has fun ______(plant) all kinds of trees. There are many kinds of precious (珍贵的) trees in his garden. The week before last Mr. Jackson _____(bring) a few trees home, planted them inthe garden himself and watered them every day. Some days later, he had to _____(leave) for another city. Before he started, he said to Tom,"_____(take) good care of the plants when I am out. Some boys of our neighbors always want _____ (steal) them." "______(not worry) about them, sir," answered Tom. "I _____(try) my best to watch them." Six days passed and Mr. Jackson came back. As soon as he     （see）Tom, he asked, "Has anyone come  to steal the trees?" "No, sir," said Tom. "I pulled them six days ago. Now they have been hidden (藏起来) in the house for nearly a week!"