题目内容：

四、句型转换.
23.Look at the picture!(改为否定句)
--------- --------- at the picture!
24.Does your mother have to work on weekends?（改为肯定句）
My mother --------- --------- work on weekends.
25.Tom can play computer games after school.(改为一般疑问句)
---------Tom ---------- computer games after school?
26.You can't leave the dirty dishes in the kitchen.(改为祈使句)
-------- -------- the dirty dishes in the kitchen.
27.I'm not happy because there are too many rules at home.(对划线部分提问)
--------- ---------- --------- not happy?