Teacher:In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
Teacher: Now, understand the problem? Solve this instance: Article: Surfers' Paradise, the largest computer chain in Hong Kong and its neighbouring area, is offering a special package for school students for the month of July only! Enjoy: l Free internet connection package l Free basic computer training from our computer school l Free computer peripherals worth $300 Simply purchase a computer from any of our stores and you'll get the free gifts listed above. Show us your _ (so we know you are a school student) and get an added 35% discount off any computer model! Call us at:Main office SHBC International Complex #1-10 Hong Kong 531122 Opening hours: 10 am to 10 pm, 7 days a weekShenzhen Branch Hi-tech prefix = st1 /ComputerCity #10-100 Shenzhen 64875813 Opening hours: 10 am to 6 pm, closed on Sundays and public holidaysGuangzhou Branch 22-24 Baiyun Avenue Guangzhou 60048953 Opening hours: 10 am to 6 pm, closed on Sundays and public holidays
Answer: computers
Student:
The purpose of this advertisement is to sell _ .