Question

Past Simple, Past Continuous

в past - добавляете ed окончание
если глагол неправильный - смотрите в таблицу неправ. глаголов

в Continious - was + глагол ing-овое окончание
для мн. лица - were + глагол ing-овое окончание

Answer 1

1 - was crossing....................struck
2 - walked..........was selling...............bought
3 - helped..............was staying
4 - lived..........was living............came down
5- were..........started
6 - were learning.............went
7 - were waiting .............started
8 - was skiing...............broke
9 - arrived...................was having
10 - started................were watching
11 - was wearing