общий
1.
Are they going to Moscow tomorrow?
2. Do students learn English and German in our college?
3. Did he write a letter to his friend last week?
специальный
1. Where are they going tomorrow?
2. What foreign languages do students learn in our college?
3. When did he write a letter to his friend?
альтернативный
1. Are they going to Moscow or to London tomorrow?
2. Do students learn English or German in our college?
3. Did he write a letter to his friend yesterday or last week?
разделительный
1. They are going to Moscow tomorrow, aren't they?
2. Students learn English and German in our college, don't they?
3. Last week he wrote a letter to his friend, didn't he?