题目内容
【题目】She could read and write.（改为否定句）
She ________ read ________ write.
【答案】couldn't or
【解析】
句意：她能读和写。含有情态动词的肯定句变否定句，直接在情态动词后面加not，could not=couldn't，否定句中把and改为or。故答案为couldn't，or。
练习册系列答案
相关题目
题目内容
【题目】She could read and write.（改为否定句）
She ________ read ________ write.
【答案】couldn't or
【解析】
句意：她能读和写。含有情态动词的肯定句变否定句，直接在情态动词后面加not，could not=couldn't，否定句中把and改为or。故答案为couldn't，or。