Was it in 1996 _____ the American astronaut succeeded _____ landing on the moon?
He said that his car _____ stolen and he _____ have to telephone the police.
My students asked me _____ I would go to Beijing by air the next year.
The tourist asked the guide what he _____ visit the next day.
You can never know _____ when she receivedour presents.
The teacher asked the boy _____.