AMIE WAS SO______ IN HER WORK THAT SHE DIDN’T NOTICE WHEN I CAME...

540. - 600 CAU TRAC NGHIEM TIENG ANH
600 CAU TRAC NGHIEM TIENG ANH
540. Amie was so______ in her work that she didn’t notice when I came in. A. busy B. wrapped up C. absent - minded D. concentrating