题目内容：

    Chinese-language teacher Xie Fang is excited because one of her students from Indonesia has been admitted (接收) to Beijing Language and Culture University. The 19-year-old student, Alvin Rizqi Adrain, achieved his dream of studying in China, Xie said at a primary school in Shunde, Guangdong Province.

Xie met the boy five years ago when she was chosen to teach Chinese at Budi Utama Three Languages National School in Yogyakarta, Indonesia. “Most Indonesian children start to learn Chinese after they enter primary school,” Xie said. “But the textbooks from Singapore seemed difficult for them.” Xie modified (修改) the content of the textbooks to make it easier to learn Chinese.

“More and more active students as well as those who were too shy to speak to me began to communicate with me in Chinese.” Xie recalled. One student, Alvin Rizqi Adrain, impressed Xie a lot. “At that time, he was a middle school student. He was so interested in Chinese that he worked very hard to learn and practice,” she said.

Bapak Djawadi, founder of the school, said that the reason he started the school was to help local children understand Chinese customs and values.

Those days in Indonesia are unforgettable for Xie. The local people have respect for Chinese teachers. Xie keeps in touch with her Indonesian students through the Internet.

根据上面短文的内容回答问题（每小题答案不超过6个单词）

1.How old is Alvin Rizqi Adrain?

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2.When does most Indonesian children start to learn Chinese?

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3.Why did Xie modify the content of the textbooks?

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4.Who communicated with Xie in Chinese, active students or the shy ones?

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5.What does the school help local children understand?

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