Is this your bag?是什么时态

OK.< >Is this your bag? Is this your bag 和 this Is your bag哪个正确,有什么差别?是否通用? is this your bag?与is this bag yours?有什么区别 This is your family photo . M ( )is in my bag. This is your bag.和 Here's your bag.有什么区别? this black bag is THIS bag is ( ) This bag is mine this is my bag. "Is this hers bag? Is your bag Where is your bag?