when I came home last night ,l saw my little kid _ ( sit) on the bed ,with his attention _ ( ...

问题描述:

when I came home last night ,l saw my little kid _ ( sit) on the bed ,with his attention _ ( ...
when I came home last night ,l saw my little kid _ ( sit) on the bed ,with his attention _ ( fix) upon the book.用括号里的适当形式填空,原因?

1)sitting ,see sb.doing sth 表示看见某人正在做某事句首说当我回到家,看见我儿子做的事正在发生.
2)fixed,根据句意可得知,该空应用被动语态.但with为伴随状态后不接完整的主谓结构,故略去be动词.