Past Simple or Past Perfect?

Yesterday Ann (1)(see) a strange man leaving the house. She (2)(notice) that he (3)(wear) a raincoat, and she (4)(wonder) why because it (5)(be) hot and sunny. The man (6)(not see) her. He (7)(begin) to walk away but he (8)(stop) suddenly and (9)(get) into a blue car that (10)(be) parked near the corner. Ann (11)(notice) a large bag by the wall. She was frightened as she (12)(watch) a programme about bombs the night before. So she (13)(decide) to phone the police. By the time they (14)(arrive), the man (15)(go). 

1 saw2 noticed3 had worn4 wondered5 was6 didn't see 7 began8 stopped9 got10 had been11 noticed12 had watched13 decided14 arrived15 had gone

1/ saw2/ noticed3/ was wearing4/ wondered5/ was6/ didn't see 7/ began8/ stopped9/ got10/ was11/ noticed12/ had watched13/ decided14/ arrived15/ had gone