Put the verbs into the correct form, past progressive or past simple

VII. Put the verbs into the correct form, past progressive or past simple.
1. When Martin_____(arrive) home, Ann (talk) to someone on the phone.
2. It _____(be) cold when we (leave) the house that day, and a light snow (fall).
3. I _____(call) Roger at nine last night, but he (not be) at home. He _____(study) at the library.
4. I _____(see) Sue in town yesterday but she (not/ see) me. She         (look) the other way.
5. When I           (open) the cupboard door, a pile of books          (fall) out.
6. A: How(you/ break) your arm?
B: I (slip) on the ice while I ____________(cross) the street in front of the dorm