Ответ:

1) We were having

2) had left

3) opened

4) I didn't drink (I didn't use to drink тоже можно)

5) ate

6) was talking

7) Were you sleeping

8) It was raining

9) goes out (здесь единственный вариант на настоящее время( все остальное - прошедшее). Если есть сомнения, то напиши went out вместо goes out))

10) didn't watch

Объяснение: