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Use "majoring" in a sentence
"We have 163 students majoring is Business Administration and Computer Science."
"As a young man, McCallister toyed with the idea of majoring in music in college and sang folk music in the early 1960s before being drafted to the U.S. military."
"I loved history so much that at one point I flirted with the idea of majoring in history in college (but called it off because the rational voice in my head was nagging me against it)."