ЗАДАНИЕ: Use past simple or past perfect to complete the sentences.
1) By 7 o'clock, Barbara explained, they (finish) the job.
2) Oleg (tell) me that he (buy) the vegetables the day before.
3) When my parents (return) I already (cook) supper and was watching television.
4) Alice added they (be) to that theatre severeal times.
5) My new friends wondered if I (can) show them Moscow.
6) James wondered if we (send) the e-mail to his manager.