下面句子有一处错误1.They are so old to take care of themselves.
问题描述：
下面句子有一处错误1.They are so old to take care of themselves.
2.Harvey have never been to water City.
3.It's really hot today,doesn't it?
4.You can see nothing when it's dark can't you?
答
1.They are [so改成too] old to take care of themselves.
2.Harvey [have改成has] never been to water City.
3.It's really hot today,[doesn't改成isn't] it?
4.You can see nothing when it's dark,[can't改成can] you?