Question

Correct the mistakes.1. At the party we dance and played games.2. Was your mum at work yesterday? - Yes, she is.

Answer 1

At the party we were dancing and playing games
2 was your mum at work yesterday
Yes she was

Answer 2

1. At the party, we danced and played games. (Use past tense for both verbs since the party already happened.)

2. Was your mum at work yesterday? - No, she wasn't. (Use past tense "wasn't" instead of present tense "isn't" to indicate that she was not at work yesterday.)