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
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