Выбери нужное слово :
1. I --- scared at the cinema last night.
     1)  am   2)  was  3)  were
2. Hello!! We --- happy to see you. You look good.
     1)  are   2)  was  3)  were
3. Seva and Taras --- bored at the last lesson.
     1)  are   2)  was  3)  were
4. My mother --- a doctor. Sshe works in a hospial.
     1)  is   2)  was  3)  were
5. There --- a cake in the fridge. Where is it now?
     1)  is   2)  was  3)  were
6. I --- hungry. Is there anything to eat?
     1)  am   2)  was  3)  were

поясните, пожалуйста: в каких случаях ставится  (is, are),  а в каких  (was,  were)