Verb to be - Present or past simple?

He ____ at the mountains yesterday

• was

• is

I ___ at school today

• am

• was

Today it ____ raining

• was

• is

My mother ____ at work now

• was

• is

They _____ at the cinema yesterday

• are

• were

We _____ at the park today

• are

• were

I _____ at school yesterday, it was sunday

• am not

• wasn't

My mother _____ at my house now, she is at work

• wasn't

• isn't

My brother _____ at the aquarium yesterday

• was

• is

My grandmother and my grandfather ____ at the funfair with me today

• are

• were