TASK 2. Past Simple in affirmative (+) and negative (-) 1. We (to play) chess with Tomas yesterday.
2. She (not to know) my address.
3. They (to see) something interesting.
4. 1(not to understand) those words
5. Aizhan ( not meet) her friends
​

1. played

2. didn't know

3. saw

4. didn't understand

5. didn't meet

Объяснение:

утверждения: подлежащее+2 форма глагола/окончание ed у правильных

отрицания: подлежащее+did+not(didn't)+основная форма глагола

вопросы: Did+подлежащее+основная форма глагола