One afternoon Mrs Green’s husband wanted to catch the 3:30 flight to London to have an important meeting. Mrs Green was very surprised when her husband telephoned her at 5 o’clock and said that he was still at the airport.
“What happened to you” asked Mrs Green.
“Well” said Mr Green , “Everything was going fine. I got my ticket, checked my luggage and waited in line at the gate. I walked across the runway to the airplane and I saw my friend Jack Scott, who was an airplane engineer. I shouted to him and a policeman caught me.”
“Why did he catch you?”
“I don’t know,” said Mr Green, “As soon as he heard my shout, he ran towards me and caught me.”
“What did you shout to your friend?”
“All I said is ‘Hi, Jack’. You know that’s the usual way we say hello to our friends”
“But you don’t know the word ‘hijack’ means taking control of a plane by force (武力) .”

One afternoon Mr Green wanted to                to London to have an important meeting. When he was                the runway to the airplane, he saw Jack, one of his       Then he said “Hi, Jack” in a loud            at once. Just then a policeman caught Mr Green as quickly as possible. When he told his              about that, she explained why he was caught.