A
2was getting off3 rang 4 were cooking 5 were all having 6 was raining
7 remembered 8 was making
B
2 My friend broke his leg when/while he was paying football.
3 We were driving into the city when had an accident.
4 She was leaving the house when the telephone rang.
C
不写了,一点点分而已,加分,我马上写完