He didn’t tell anybody where he was going.
Did you know where he had gone?
Did you know where he was?
I wanted to know when he was leaving school.
Nobody knew where he lived.
She asked them when he would come back.
He wanted to know where she had bought that hat.
I had no idea how much she had paid for it.
I forgot where I had put the book.
She wanted to know who had given me that nice kitten.
He asked me where he could buy an English-Russian dictionary.
He wondered how long it would take my brother to get to Madrid.