观察价格表,填一填。
商品名
单价(元)
电视机
998
洗衣机
1024
微波炉
508
电冰箱
1989
——Jack , you look tired today. What’s wrong?——I was ____busy_______ I didn't go to bed until midnight yesterday.
句型转换。
宋太祖为了防止知州的权力过大,设立了哪一机构加强管理( )