Because his sickness, he didn’t take part in the English competition held last Sunda25/50Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction. Because his sickness, he didn’t take part in the English competition held last Sunday.Because he take heldGiải thíchĐáp án là A because ( + clause ) => because of (+ N/ V-ing) .