A.I'm not satisfied with your explanation of where you <u>were</u> last night.
b.I came into the room when Mary <u>was playing</u> the piano.
c.no error!!!
d.There <u>are</u> some sheep in the field.
e.Playing the drums and singing<u> is </u>difficult.
Answer:
He had limited success because he was a generally nice person without a surplus of ego and because he wasn't flashy.
I think the answer would be C, because an implicit theme is one that's hidden in the story and you kind of have to dig into the piece and look for it.