He couldn’t remember when he first listened to Obama’s speech, but he was sure it was ________ Monday because everybody was at ________ work.
_____ was very ______ that little Jim wrote the letter.
What is it _____ his daughter needs most?
Who was it _____ saved the drowning girl?
“How was ______ they discovered the entrance to the underground palace?” “Totally by chance.”
____ that caused him to serve dinner an hour later than usual.