Ex. 1. What were you doing at the following times? Write one sentence as in the examples.

1. What were you doing at 8 o'clock yesterday evening? I was having dinner with some friends.
2. ... at 3 o'clock last Sunday?
3. ... at 9.15 yesterday morning?
4. ... at 5.30 this morning?
5. ... at 7.40 yesterday evening?
6. ... half an hour ago?