The pollution were terrible when the factory dumped its waste into the river.A B C D 改错
来源:学生作业学帮网 编辑:学帮网 时间:2024/06/17 07:59:05
The pollution were terrible when the factory dumped its waste into the river.A B C D 改错
were->was
pollution不可数,做三单
were改为was
were ----was