阅读理解

　　John left the United States in 1967 to work in Africa (非洲) . Africa was hot, and when John came back to the United States in 1979, he said to himself,“It's much colder here than it was before I left. I am going to buy an electric heater (电炉).”

　　John went to a store the next day to buy an electric heater. The salesman showed him three different kinds and then said ,“And this is our best electric heater. It costs a lot of money , but it saves half of your electricity (电) and electricity is very dear now, isn't it?”“Yes, it is very dear ,”John answered ,“and it's becoming worse every year.”He looked at the electric heater carefully , thought for a few seconds and then said ,“Well , I'll take two of these , and then I'll save all of my electricity.”

1．John left the United States ________ to work in Africa.

[　　]

2．John went to a store the next day. Here store means ________.

[　　]

3．The best electric heater is very ________.

[　　]

4．“John looked at the electric heater carefully, thought for a few seconds and then said…”Here“for a few seconds”means“________”.

[　　]

5．At the end of the story , John ________.

[　　]

A．told us two electric heaters saved all of his electricity

B．played a joke on the salesman

C．needed two electric heaters

D．thought two electric heaters were cheap

Have you ever had an embarrassing experience? Last week we asked readers to tell us about embarrassing experiences. We received thousands of letters! Here is a selection.
Tony:
My most embarrassing experience happened when I had just left university. I had just started teaching in a Liverpool middle school. One morning my alarm clock didn’t ring. I woke up at half past eight and school began at nine. I quickly washed, dressed, jumped into my car and rushed to school. When I arrived, the students had already gone into class. I didn’t go to the office, but went straight into class. After two or three minutes the students began laughing, and I couldn’t understand why! Suddenly I looked down and understood. I had put on one black shoe and one brown shoe!
Henry:
The most embarrassing experience I’ve ever had happened two years ago. After seeing a film, my wife and I had lunch in our favorite restaurant in town. Then we decided to take a walk along the street. The street was very busy and we started holding hands. Suddenly my wife saw a dress that she liked in a shop window, and stopped. I started looking at some watches in the next window. After a minute or two I reached for my wife’s hand. There was a loud scream, and a woman slapped my face. I hadn’t taken my wife’s hand. I’d taken the hand of a complete stranger（陌生人）!
【小题1】Tony arrived at school late that morning because            .

Have you ever had an embarrassing (尴尬的) experience? Last week we asked readers to tell us about embarrassing experiences. We received thousands of letters! Here is a selection.
Tony: My most embarrassing experience happened when I had just left university. I had just started teaching in a Liverpool secondary school. One morning my alarm clock didn’t ring. I woke up at half past eight and school began at nine. I quickly washed, dressed, jumped into my car and rushed to school. When I arrived, the students had already gone into class. I didn’t go to the office, but went straight into class. After two or three minutes the students began laughing, and I couldn’t understand why! Suddenly I looked down and understood. I had put on one black shoe and one brown shoe!
Henry: The most embarrassing experience I’ve ever had happened two years ago. After seeing a film, my wife and I had lunch in our favorite restaurant in town. Then we decided to take a walk along the street. The street was very busy and we started holding hands. Suddenly my wife saw a dress in a shop window and stopped. I started looking at some watches in the next window. After a minute or two I reached for my wife’s hand. There was a loud scream, and a woman slapped (拍击) my face. I hadn’t taken my wife’s hand！I'd taken the hand of a stranger!
【小题1】The students began laughing when they saw Tony _________.