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?
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?
问题解答：
我来补答展开全文阅读