this is my first time 后面跟什么是跟动词原形、动词不定式还是动词ing形式啊?

This is My first This is my book.______is in the schoolbag.用适当的人称代词或物主代词填空。______ is Tim Smith.______ first name is Tim. this is my first time______（cook） This is my first visit ________ China. This is my first bag中first前要加the吗 this is Tim?中文直译 this is my first vist__on__Beijing,so everything is new_for__me.对么? this is my first pagethis is my first pagealign=center请注解一下好吗 英语Tim's人名的问题Tim's是Tim的什么什么----比如Is this shirt Tim's?这句型的Tim's和shirt可以调换位置吗?Tim's shirt's white.这句呢》shirt's和Tim's可以掉换不?还有Tim's可以用在my/your/its/her的所有格吗?理 Whoes is it?It is Mary.改错 Are this shirt Tim is?the names are my friend is. 连词成句my Australia is first visit this to this is my first time and it`s very this is my first time to do like Is this Tim's shirt?和Is this shirt Tim's?哪个正确?如题：Is this Tim's shirt?和Is this shirt Tim's?哪个正确? E____me.Tim.Is this your pen? this is my first time to go to there.this is a good day hanging out. Is this shirt Tim's?可以换成Is this Tim's shirt吗?可以吗, Is this shirt Tim’s Is this Tim’s shirt?意思相同吗?