C. Was
It says "my parents or my older sister". The last subject stated is "my older sister" which is singular. And the only choice that's singular is 'was'. So that should be the answer.
Are you talking about a triangle?
If so, the angles in a triangle add up to 180.
70 + 30 = 100
So c must be 80 because 100 + 80 = 180.
x = 80
I say it would be the second one because to show possession you have to have an apostrophe.
I had begun by tracing the Japanese characters with a pencil.
*begun is a past participle
