作业帮一个英语句子 主语的疑问
来源：学生作业帮 编辑：拍题作业网作业帮 分类：英语作业 时间：2024/04/29 03:16:54
一个英语句子 主语的疑问
what the teacher had wortten on the board {were}keys to the problem括号里的为什么是{WERE而不是 WAS
what the teacher had wortten on the board {were}keys to the problem括号里的为什么是{WERE而不是 WAS
关键词汇是KEYS,因此需要用为were,而不是was.
如果将句子改一下,就变为：
There were keys to the problem on the board written by the teacher.
如果句子为：
what the teacher had wortten on the board {was}a key to the problem.
这里就要用was,而不是were.
如果将句子改一下,就变为：
There were keys to the problem on the board written by the teacher.
如果句子为：
what the teacher had wortten on the board {was}a key to the problem.
这里就要用was,而不是were.