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B: It is called a telephone.
B: It was invented in 1876.
B: It was invented by Bell.
B: It is used for talking with people.
in 1871
giving light
Edison
A: What are they called in English?
A: When were they invented?
A: Who were they invented by?
A: What are they used for?
B: They are called light bulbs.
B: They were invented in1871.
B: They were invented byEdison.
B: They are used for giving light.
in 1885
Karl Benz
traveling
A: What is this called in English?
A: When was it invented?
A: Who was it invented by?
A: What is it used for?
B: It is called a car.
B: It was invented in 1885.
B: It was invented by Karl Benz.
B: It is used for traveling.
A:When were they made ?
B:They were made last week.
A:Who were they made by ?
B:They were made by Mrs. Wu.