Răspuns :

A)cry-cried
Work-worked
Wash-washed
Count-counted
End-ended
Open-opened
Stay-stayed
Finish-finished
Help-helped
Travel-traveled
Play-played
Live-lived
Decide-decided
Answer-answered
Need-needed
Want-wanted
Ask-asked
Listen-listened
Watch-watched
Study-studied
Admit-admited
Walk-walked
Drop-dropped

B)1. Washed
2.opened
3.played
4.cried
5.waited
6.asked
7.walked
8.stayed
9.watched
10.putted to sleep
11.writed
12.helped
13.lived
14.looked

C)
1.Did you clean your room?
Yes i cleaned my room
2.Is your mom at work?
No she didnt worked today.
3.did your dad wash the car?
Yes he washed the car.
4.did you study math?
Yes i studied math.
5.did your mom cook a meal?
Yes she cooked a meal.