Answer: 1B, 2F, 3D, 4C, 5A, 7E, 8G

1. People's contribution for the common good - B

2. Sharing your personal knowledge with others - F

3. Virtual reality for users with social interaction problems - D

4. New visual technologies at school - C

5. Virtual travel with useful navigation apps - A

6. Popularity of virtual tourism among teens

7. Comparing new technology to other forms of entertainment - E

8. When age does not matter - G

Выражение про популярность виртуального туризма среди подростков оказалось лишним (основных тем текста 8, а самих мини-текстов всего семь).

Good Luck!