Помогите решить 15 под а и б.

1 was
2 worked
3 decided
4 heard
5 walked
6 listened
7 felt
8 picked up
9 called
10 hid
11 went
12 walked
13 saw
14 had
15 looked
16 whispered
17 looked
18 said
19 came
20 wanted
21 though
22 didn't want to

Mary was tired вместо was unhappy
She heard a loud crash вместо a loud voice
She walked nervously вместо calmly
Strange noises вместо strange music
She felt very frightened вместо angry
Five minutes later вместо ten minutes
Saw a man on the floor вместо a policeman
She whispered quietly вместо loudly
It's my husband вместо brother.