1) Mr. Brown wrote a lot of letters in the past.
2) Our fax-machine didn't work in the
morning.
3) We sent letters every day last summer.
4) Did you know the answer yesterday?
5) We didn't buy telephone equipment last
friday.
6) This order was very important five years
ago.
7) They delivered all orders on time last
week.
8) We sold books to different countries
yesteryear.
9) Were you very busy last evening?
10) The weather was fine last winter.