用方框中所给的适当形式填空。

Jack worked in a shop that sold clocks. He was always telling Harry  26 a new clock. But Harry,  27 lived next door to Jack, said he didn’t need one.
“  28 needs a clock,” Jack said. “How do you know when it’s time to get up?”
“My landlord Mr. Smith turns on his radio at seven o’clock and listens  29 the news,” Harry said. “That’s my morning call.”
“Ok. But how do you know when to go to work?”
“By the time I  30 my breakfast, it’s eight o’clock, time to leave for the office. Then I walk there. When I arrive at my office, it’s nice o’clock. That’s  31 time I start work.”
“Ok. But how do you know when it’s time to go home?”
“The factory bell  32 ” Harry told him.
“But how do you know when it’s time to go to bed?”
“The television programs come to end.”
By now Jack was really  33 . “Ok,” he shouted. “Now tell me what would happen  34 you woke up in the middle of the night and wanted to know the time.”
“That’s easy,” Harry said, “I would knock heavily on  35 wall. Then you would shout at me, ‘What are you doing knocking on my wall at three o’clock in the morning?’”

—What time is it?      

—It's ____eight o'clock.