2. Раскрой скобки, поставив глаголы в Past Perfect: 1) They (finish) the task by 2 pm yesterday. 2) He (clean) the flat before the guests came. 3) Sue (do) her work before her boss called. 4) Joe gave Marie a present after they (have) dinner. 5) Kate (study) hard for the test, so she didn't fail. 6) Victor knew Venice so well because he (visit) it before. 7) I wasn't hungry because I (have) lunch before. 8) Before Mike came home Alina (make) a cake. 9) Harry was tired, he (have) a busy day. 10) Luis called the office, but Jane (already/leave)

В Past Perfect (прошедшем совершенном времени) глагол имеет форму had + Past Participle (3-я форма глагола).

1. They had finished the task by 2 pm yesterday. (Они закончили задачу к 2 часам вчера.)
2. He had cleaned the flat before the guests came. (Он убрал квартиру до прихода гостей.)
3. Sue had done her work before her boss called. (Сью сделала свою работу до того, как позвонил ее босс.)
4. Joe gave Marie a present after they had had dinner. (Джо подарил Мари подарок после того, как они поужинали.)
5. Kate had studied hard for the test, so she didn't fail. (Кейт усердно училась к тесту, поэтому не провалила его.)
6. Victor knew Venice so well because he had visited it before. (Виктор так хорошо знал Венецию, потому что посещал ее раньше.)
7. I wasn't hungry because I had had lunch before. (Я не был голоден, потому что пообедал раньше.)
8. Before Mike came home Alina had made a cake. (До того, как Майк пришел домой, Алина приготовила торт.)
9. Harry was tired, he had had a busy day. (Гарри устал, у него был насыщенный день.)
10. Luis called the office, but Jane had already left. (Луис позвонил в офис, но Джейн уже ушла.)

Ответ: смотри решение