He doesn't tell me.
He doesn't tell me how much this bag is.
I'm not sure.
I'm not sure why it happened suddenly.
Please tell me.
Please tell me where your favorite place is.
I can't remember.
I can't remember where I put it.
Nobody knows.
Nobody knows why James left the office.
Could you tell me?
Could you tell me when the next train comes?
The doctor will ask you.
The doctor will ask you what you ate for breakfast.
Ralph’s mother knew.
Ralph's mother knew where he kept the book.
We want to know.
We want to know why he is so upset.
