is lily's birthday on june 2nd?yes,it is.____is on the same day.

is lily's birthday on june 2nd?yes,it is.____is on the same day.
is lily's birthday on june 2nd?yes,it is.____is on the same day.

is lily's birthday on june 2nd?yes,it is.____is on the same day.
Is lily's birthday on june 2nd? yes, it is. Mine is on the same day.
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Mine

我的在同一天

根据题意，空白处应该用名词所有格形式，但是不知你想填的是哪个人的，可以是Mine

mine 名词性物主代词，=my birthday

丽丽的生日在六月二号吗？是的。后面的应填名词性物主代词，表示谁的生日也是在同一天