It might be said that the main difference is that American Literature was discovering unique topics. It might be characterized by Puritan´s ideas and belief. There could be found some sermons and short stories. As regards, British literature, it might be said that it implied poetry and essays and later on the birth of the novel.
Answer:
From the given sentence and question, no verb is highlighted, but from the sentence, "If the speaker had been on time, the program would have begun on time", you can see that there is tautology as the word "on time" is used twice in the sentence when it could have been used only once.
Therefore, to correct this tautology, the sentence can be rewritten as: "If the speaker had been on time, the program would have begun early".
As a result of this, there is no incorrect verb form in the sentence, so it is safe to assume that the highlighted verb is correct.
I think its B, not sure though double check on it.
