Identify the phrase that should be corrected in the sentence: It was after soon he arrived in the U.S.A that he met the woman who was to become his wife.

The phrase "after soon" is a bit awkward and unclear in the context of the sentence. The intended meaning is likely to convey a sequence of events, indicating that something happened shortly after another event. A more common and grammatically correct phrasing would be "soon after" instead of "after soon."

In this sentence, the correct phrasing enhances clarity and maintains the flow of the narrative, helping the reader understand that the meeting occurred shortly after his arrival in the U.S.A. Using "soon after" effectively sets the timeline and improves the sentence's overall coherence. The other words in the sentence do not create the same confusion and are grammatically correct as they stand.