Sure, I'll help you fill in the blanks with the correct verb forms:

11. By the time we **got** to the party, they already **had left**.

12. This was the worst test I **had done**.

13. I **wrote** a long letter to my mother yesterday.

14. I was feeling very thirsty because I **had drunk** too much alcohol the night before.

15. The doctor examined her leg and **found** that she **had broken** it.

16. When I saw her I knew we **had never met** before.

17. When the police came, the car already **had gone**.

18. When she went out, she already **had done** her homework.

19. The house was very quiet when I **got** home. Everybody **had gone** to bed.

20. The man sitting next to me on the plane was nervous because he **had never flown** before.

21. Hardly had I **put** the phone down when the boss **called**.

22. Last year they **moved** to Paris.

23. It's about time you **took** a break.

24. It was the first time I **had ever seen** such a beautiful girl.

25. Would you mind if I **took** a photo?

26. Did you **meet** Tom at the party last night? - No, he already **had gone** home before I **arrived**.

27. I'd rather you **did not make** so much noise.

28. No sooner had he **left** the office when the telephone **rang**.

29. If I **had learned** last year, I would have passed the exam.

30. He **had served** in the army before 1975.