Question

Помогите срочно пожалуйста!!!
Даю 30 балов​

Answer 1

1.Had Mary booked the tickets before? 2. Where had we been? 3. When had you received the invitation? 4. What had arrived before 5 o'clock? 5. Who had heard that story before? 6. Had they had gone to the railway station before 6 o'clock? 7.My father had returned from his business trip by the weekend, hadn't he? 8.Had we met Eric before or after the lesson? 9. When had the taxi come? 10.What had they used before?