Verified answer

1 Dan wrote a letter at 5 oclock.

Did Dan write a letter at 5 oclock?

Who wrote a letter at 5 oclock?

Did Dan write a letter at 5 or 6 oclock?

What did Dan write at 5 oclock?

Dan wrote a letter at 5 oclock, didn't he?

2 You have hidden all the pictures.

You have hidden all the pictures, haven't you?

Have you hidden all the pictures?

What have you hidden?

Who has hidden all the pictures?

Have you hidden or found all the pictures?