6. Tags 1. It is frosty, 2. I am a student, 3. The buses are new, 4. He wants to be a doctor, 5. It is not a parrot,

Решение:

• 1. It is frosty, isn't it? (Вопрос с "it is" образуется с помощью "isn't it?").
• 2. I am a student, aren't I? (Для "I am" используется "aren't I?").
• 3. The buses are new, aren't they? (Множественное число "buses" требует "aren't they?").
• 4. He wants to be a doctor, doesn't he? (Для "He wants" используется "doesn't he?").
• 5. It is not a parrot, is it? (В отрицательном предложении "It is not" используется "is it?").

Ответ: isn't it?, aren't I?, aren't they?, doesn't he?, is it?