III.
1. had you done/ returned
2. came/ told/ had gone
3. went/ had studied
4. went/ had found/ had lost
5. got/ told/ had already cooked
6. returned/ had built
7. arrived/ had already started
8. said/ had done/ went
9. began/ had reviewed
10. made/ read
IV.
1. once
2. as
3. until
4. before
5. whenever
6. at the time
7. after
8. the moment
9. by
10. in his day
V.
1-f. I was dreaming when the alarm clock rang.
2-e. Whe Mary saw the question, she knew the answer.
3-h. The train was waiting when we arrived at the station.
4-b. Ella had a puncture when she was driving on the motorway.
5-g. When I tried the cake, I liked it.
6-a. When Karen was lifting the chair, shr felt a sudden pain in her back.
7-d. When the gate opened, the crowd walked in.
8-c. Iwas reading a library book when I found a $10 note between 2 pages.
VI.
A. went
B. was watching/ got/ came/ didn't miss
C. was coming/ fell
D. were playing
