What does Sam's mother play yesterday.哪里错了?

What does Sam's mother play yesterday.哪里错了?
What does Sam's mother play yesterday.哪里错了?

What does Sam's mother play yesterday.哪里错了?
What did Sam's mother play yesterday?
请及时采纳,多谢!

OK，是助动词的时态错了。应改为——What did Sam's mother play yesterday.

does改为did.
有yesterday即表示是昨天的事情，那么应该用过去式，do的过去式为did。

It should be :What did Sam's mother play yesterday?

What did Sam's mother play yesterday.