Is it correc to say, 'questions about ...?

[learning54]

Hi teachers,
Is it correc to say, 'questions about the subject of a sentence' according to the sentence below?
Who visted you yesterday?
Mary (did).
Is it correc to say, 'questions about the object of a sentence' according to the sentence below?
Who did you visit yesterday?
I visited John.

Thanks in advance.

 

[emsr2d2]

Hi teachers,
Is it correc to say, 'questions about the subject of a sentence' according to the sentence below?
Who visted you yesterday?
Mary (did).
Is it correc to say, 'questions about the object of a sentence' according to the sentence below?
Who did you visit yesterday?
I visited John.

Thanks in advance.

1) Check your spelling of correct.
2) When you say "Is it correct to say ...?" do you mean that you are planning to simply put the words "Questions about the subject of a sentence" at the top of a list of questions?

 

[learning54]

1) Check your spelling of correct. Thank you. This one happened because while I was writing it the phone rang and I didn't pay much attention. But as always I appreciate your corrections.
2) When you say "Is it correct to say ...?" do you mean that you are planning to simply put the words "Questions about the subject of a sentence" at the top of a list of questions? Not really. It is at the top of a chart where explains how to write information questions with who.

In fact, I have another mistake, 'Who visited you yesterday?'

L54