помогите пожалуйста плиз плиз

1) returned
2) had returned
3) finished
4) had finished
5) thought, had lost
6) told, had seen
7) came, had already cooked
8) returned, had already done
9) entered, had already opened
10) gave, had brought
11) showed, had drawn
12) gave, had brought
13) saw, hadn't washed
14) understood, hadn't done
15) knew, hadn't come yet
16) woke up, had already gone
17) thought, hadn't come home yet
18) told, had cooked
19) found, had lost
20) came, had alredy left
если все правильно, отметь как лучшее, если не сложно