根据所给提示，完成下列句子。每空一词，含缩略词。
Those are my rulers.（改为单数)
That ________ my ________.
This is Gina’s pencil-box. (改为否定句句)
This _______ _______ Gina’s pencil-box.
My jacket is blue and white.（对划线部分提问）
________ ________ is your jacket?
我丢失了我的学生证。       
I _______ my school ID _______.