Ответ:

1)came;

2)When she entered, the film had already began.

3)had bought, came up;

4)remembered, she had left;

5)told, he had already passed;

6)I had switched on, began;

7)telephoned; had already drove;

8)woke up; had already made;

Объяснение:

We use Past Perfect when we got an action before another; The word “before” also could help you to define the part of the sentence where you should use Past Perfect.

As well, when in the first part, we use Past Simple, we use Past Perfect in the second or vice versa.