Нужно

1. Programming languages initially …. by people in universities ( create).
2. The experiment …. by testing the end product. (follow).
3. The students … their laboratory work now. (do)
4. Public interest in the electric vehicle … higher by now.(become).
5. Digital audio players … by rechargeable batteries.(power).
6. Last summer we … a plant producing digital televisions. (visit)
7. Space flights would be impossible if special materials for space vehicles ...(produce).
8. If I … you , I'd try to replace a heat sink. (be).
9. If you … image editing software, it would be easier to preserve your family memories.(install)
10. If you want your confidential information stays confidential, … a firewall. (install).