Past Perfect Continuous (Past Perfect Progressive)

1) He __________ the book until he reached the end.

2) They __________ TV until their mother told them to go to sleep.

3) She failed the test because she __________ at all.

4) The dog __________ on the field until his owner caught him.

5) My legs hurt because I __________ my bicycle all day.

6) I __________ for less than a mile when I ran out of gas.

7) I __________ for my keys, and then I found them under a chair.

8) I was relieved to find out that they __________ too long.