Talk about birthdays
1.-When is your birthday? -It'son .
2.-When is his/her birthday? -It'son .
3.-When is Alice's birthday? -It'son .
4.-When is your father's birthday? -It'son .
Talk about ages
5.-How old is //？ -He/She is 15.
6.-How old are /？ -They are 13.

1. May 2nd
2. January 17th
3. September 5th
4. April 21st
5. he; she; the boy
6. they; the boys

How to ask about the goods
1.- do you want for a birthday gift? 一
How to offer help/thank someone
2.-? -Yes,please.
3.-Thank you. -You are .
How to ask about prices
4.- is/are....? --It's/They're...
How to ask about number
5.-...do you want to buy? -I want to buy.../...of...

【解析】：本题主要考查七年级英语上册中关于购物场景的基本对话和询问方式。题目通过模拟生日会筹备的购物场景，要求学生掌握如何询问商品、提供帮助、感谢他人、询问价格以及询问数量等基本句型。
1. 第一个空需要填入询问商品的句型，考虑到是询问生日礼物，所以可以使用"What"来引导问题。
2. 第二个空是店员提供帮助的常用语，通常店员会问"Can I help you?"来询问顾客是否需要帮助。
3. 第三个空是回答感谢的用语，当别人说"Thank you"时，通常回答"You're welcome"表示不客气。
4. 第四个空是询问价格的句型，可以使用"How much"来引导问题，询问某物品的价格。
5. 第五个空是询问数量的句型，可以使用"How many"来引导问题，询问想买多少数量的物品。
【答案】：
1. What
2. Can I help you?
3. welcome
4. How much
5. How many

1.They hold the ceremony(典礼)to (mark)the birthday of William Shakespeare.
2.All students and parents have a nice day on our School(found)Day.
3.It is his/a un/idea.
4.Many of my classmates,forBill and Anna,always have good grades.
5.There are some similarities(相似之处)between the two(language).
6.China's/'na ∫ nal/Day is on 1 st October.
7.Children's Day falls on 1 st June.

1.mark
2.Foundation
3.own
4.example
5.languages
6.National
7.International