Indicate the underlined part that needs correction: Having finished his termĐoạn văn6/40Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Having finished his term paper before the deadline, it was delivered to the professor before the class.Having finishedbefore theit was deliveredprofessor beforeGiải thíchĐáp án C.