С.
1. kate the cafe late yesterday.
а. had left
b. left
2.she reading at 9 pm last saturday.
finshed
had finished
3. all his homework before his parents came home.

did
had done
4. that morning she .and went out.

had dressed, had phoned
dressed, phoned

5. i knew him at once though him many years before.

had met
met

6. by the age of 10 some sports club.

had joined
joined

7. he wasn`t hungry because

just had
had just had

8. they painting the room by 6 pm.

finished
had finished

9. bob tried to find a job after a year sentence.

served
had served

10. she her hair blonde and she looked very nice.

painted
had painted

1) Kate left  the cafe late yesterday.  (Past Simple)

А. Had left

B. left  (Past Simple)

2) She finshed  reading at 9 pm last Saturday.  (Past Simple)

Finshed  (Past Simple)

had finished

3) Nick had done all his homework before his parents came home (Past Perfect)

did

had done  (Past Perfect)

4) That morning she dressed, phoned  somebody and went out.  (Past Simple)

had dressed, had phoned

dressed, phoned  (Past Simple)

5) I knew him at once though I had met  him many years before (Past Perfect)

had met  (Past Perfect)

met

6) By the age of 10 I had joined  some sports club (Past Perfect)

had joined  (Past Perfect)

joined

7) He wasn`t hungry because I had just had  breakfast  (Past Perfect)

just had

had just had  (Past Perfect)

8) They had finished  painting the room by 6 pm  (Past Perfect)

finished

had finished  (Past Perfect)

9) Bob tried to find a job after he had served  a year sentence  (Past Perfect)

served

had served  (Past Perfect)

10) She painted her hair blonde and she looked very nice  (Past Simple)

painted  (Past Simple)

had painted