Hi, I am a non native english speaker, I wanted to verify my english homework in this space. Thank you for your help
1) make 5 sentences, using the verb to be in contrast with the simple past tense
*Affirmative: we were at the movies, when you called
*Negative: We weren't at the movies, when you called
*Affirmative: I was at school, when my friend came
*Negative: I wasn't at school, when my friend came
*Affirmative: The cat was on the bed when the bell rang
*Negative: The cat wasn't on the bed, when the bell rang
*Affirmative: We were at the park, when we met Anna
*Negative: We weren't at the park, when we met Anna
*Affirmative: They were in Madrid, when my mom arrived to Venezuela
*Negative: They weren't in Madrid, when my mom arrived to Venezuela
I just need to know if I answered it all well and if the grammar is correct... please, my teacher is super strict