完成下列对话,一空一词
A:Hello,Jane.Where are you going
B:Hello,Jenny.I'm going to Gina's birthday 1._____.
A:Really?2.____ is her birthday?
B:June thirty-first.
A:Oh.What year 3.____ she 4.____?
B:In 1991.
A:OK.So she is thirteen 5.____ 6.____
B:That's 7.____
A:OK.Please say 8.____ birthday to her for me.Have a 9.____ time at the party.
B:10.____.Bye!
A：Goodbye!
第10个空格到底是什么？