⚡️Помогите срочно с английским пожалуйста



Раскройте скобки, употребляя глаголы в форме Past Simple или Past Perfect
6. I (to know) that he (not to learn) the poem
7. When they (to) the beach, the rain already (to start)
8. Arthur (not to know) that already (to arrive)
9. When I we (to come), I(to see) that mother (to cook) dinner
10. My friend (to study English before he (to enter) the institute
11. The car (to go) when I (to look) into the street
12. He (to take the decision before I (to come)
13. Nick (return) from office by seven o'clock.
14. We (to get) to the stadium at four o'clock but the game already (to start)
15. She (to come) at six o'clock
16. I (to think) that my parents already (to return)
17. He (to be sure) that we (not to recognize) him
18. You (to find) your key which you (to lose) before?
19. Meg (to say) that she (to be) in this city 20. The doctor (to arrive) when we already (to help) him