1. B. schools are still necessary.

2. C. new technology will replace teachers completely.

3. B. linked to libraries, museums, science centers, laboratories and even corporations.

Dẫn chứng: We should invent a new kind of school that is linked to libraries, museums, science centers, laboratories, and even corporations.

4. D. It's a city in Virginia where learning can take place at home, at school and in offices.

Dẫn chứng: Blacksburg, Virginia, is one of them. Here the entire city is linked to the Internet, and learning can take place at home, at school, and in the office. 

5. B. Positive (adj): lạc quan, tích cực

1. B

2. C

3. B

4. D

5. B

Chúc bn hk tốt!