Analysis of test questions: put a full stop after parentheses, put parentheses in sentences, and put a full stop after parentheses. Parentheses outside the sentence, with a period in front of the brackets, and the original title is parentheses inside the sentence; The comma after the "ballad" in item B should be placed outside the quotation marks, and there is no punctuation mark after the indirect speech, except the exclamation point and question mark; Item C, brackets and the contents in brackets should be placed after "equipment". The explanation that reed mats and ropes are "artifacts".