题目内容
【题目】Paper ______ invented by Chinese many years ago.
A. is B. are C. was D. were
【答案】C
【解析】
试题分析：句意：纸张是很多年前中国人发明的。根据时间状语可知，时态为一般过去时态。排除A,B；paper为不可数名词，动词用单数形式。故答案为C。
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题目内容
【题目】Paper ______ invented by Chinese many years ago.
A. is B. are C. was D. were
【答案】C
【解析】
试题分析：句意：纸张是很多年前中国人发明的。根据时间状语可知，时态为一般过去时态。排除A,B；paper为不可数名词，动词用单数形式。故答案为C。