Resposta :
1. (C) Was - were
2. a) They were danced so much with their wives.
b) he was washed his home during the morning.drove his car all night.
c) My father was drove his car all ninght.
d) We were fixed my car last weekend.
OBS: Os verbos da 2 estão errados porque já estão no passado, mas a conjunção do Was/were está correta
Heyo!
To perform them, keep in mind:
I → Was/Were (depends on the situation).
He/She/It → Was.
We/You/They → Were.
So that, we conclude:
1.
(C) - Because "was/were" are past form of "am/is/are".
2.
a) Were
b) Was
c) Was
d) Were
I don't know how "was/were" can fill the gaps in exercise 2, but if it was requested...
I'm sorry if wasn't what you were looking for, I didn't understand well what exercise 2 means.
Hope I've helped, enjoy your studies!