【初二下英语题】用所给词适当形式填空、句型转换

用所给词适当形式填空：
1.Mum _bought___ (buy) my father a nice coat and a pair of trousers last sunday.
2.While my parents were doing some cleaning,my sister _was shouting___ (shout) to me loudly.
句型转换：
1.He worte a letter to his friend yesterday afteroon.(用from 5:00 to 5:40改写)
He _was___ _writing___ a letter to his friend from 5:00 to 5:40 yesteday afteroon.

1 bought
( last Sunday上周星期天，用一般过去时)
2 was shouting （ 表示同时进行）
1 was writing

bought
was shouting
was writing