It is a bag怎么改为一般疑问句

It is a bag怎么改为一般疑问句 There is a pen in my bag.【改为一般疑问句】 It is a ruler(改为一般疑问句)怎么写? it is a lovely dog改为一般疑问句,怎么改 My bag is green. 改为一般疑问句. My bag is yellow改为一般疑问句 It is a cat 改为一般疑问句 it is a pen(改为一般疑问句) It is a book改为一般疑问句 it is a cat改为一般疑问句 1.Is there a bag of meat in the fridge?改为一般疑问句 this is a bag of pears.（改为一般疑问句） those are donkeys over ther