1 Tom ( )(work)in the garden while I ( )(sit)in the sun.

1 Tom (was working )(work)in the garden while I (was sitting )(sit)in the sun.
两个都是长动作,所以都用过去进行时表示状态
2 用主语+动词的结构回答下面的问句 Who took the parce off the plane?
Tom took the parce off the plane首先谢谢您的回答，第二题在练习册中的答案是这样回答：Tom did.请问这是为什么，我也很不解。一样的答案是简单回答，只要助动词就行了我的是完整回答