there is a pay phone near the school (改为一般疑问句) there is in my pencil case（改为同义句）

there is a pay phone near the school
(改为一般疑问句) ：Is there a pay phone near the school
there is in my pencil case ( 题目对吗?）
（改为同义句）It is in my pencil case.there is a pen in my pencil case （改为同义句）A pen is in my pencil case.