Answer:it should be a or d
Explanation:
The answers are
D, B, and D
To be honest, I think it might possibly be the third option. I hope this helps.
Has discovered. That is the correct grammatical answer. Hope this helps!!<span />
<span>Here are a couple of sentences that you could use.
On Friends, Rachel was eating Ritz Crackers.
I ate popcorn while watching Game of Thrones.
My mother was cooking hamburgers while American Idol was on.</span>
