Раскройте скобки и заполните пропуски в вопросительной форме.

1. Have you heard this song before? 2. Have they heard this song before? 3. Have they gone to school since last summer? 4. Has he gone to school since last summer? 5. Has he ever ridden a horse? 6. Has she ever ridden a horse? 7. Has she just said that? 8. Have you just said that?