Переписать предложения , как будто это произошло в прошлом

1) I call my friend

2) Bob invites me to the party

3) Ann sends a letter

4) They buy a cake

5) Mother brings toys

6) I read the book

7) Bob reads the book

8) We choose a bike

9) Nick rides his bike

10) He opens the door

11) They finish their work

12) I understand it

13) We have lunch at 12 o'clock

14) Bob has dinner at home

15) Ann meets her friends

16)They do their her homework

1) I called my friend

2)Bob invited me tp the party 

3) Ann sent a letter

4)They bought a cake

5)Mother brought toys

6)I read the book

7)Bob read the book 

8) We chose a bike

9)Nick rode his bike

 10)He opened the door

11)They finished their work

12) I understood it

13)We had lunch at 12 o'clock

14) Bob had dinner at home 

15 ) They did their homework