Did you meet the professor at the airport?—No，he ____ by the time I ____ there．

He has been away _____. [ ]

Each of the club members ________ready to help those who were in trouble.

David, how old is your father this year? – ———— And we just had a special party for his _____ birthday last weekend.

Where is your sister, Dick? I need her help. — Dad, she in her room. Let me help you instead.