Third, some programs are like fancy typewriters. They are often used by writers and business people.

* Hướng dẫn giải

Dẫn chứng: Third, some programs are like fancy typewriters. They are often used by writers and business people. Other (12)_________are made for courses in schools and universities.

Chủ ngữ trong các câu này đều đề cập đến "programs"