According to the passage, which of the following sentence is NOT true?

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We know exactly when and how people first used fire

Before gas lamps and electric lamps appeared, streets were lit by torches

We can make a fire by striking a piece of iron on flint to ignite some tinder

Matches and lighters were invented not long ago

Giải thích

Đáp án A
B. đúng theo Dẫn chứng trong bài dọc: “There was no lighting in city streets until gas lamps, and then electric lamps were installed. Boys ran about London at night carrying torches of burning material.”
C. đúng theo Dẫn chứng trong bà đọc: “To make fire, it was necessary to strike a piece of iron on flint for sparks to ignite some tinder”
D. đúng theo Dẫn chứng trong bài đọc: “But it was not long ago that there were no such things as matches or lighters”
A. không đúng theo Dẫn chứng trong bài đọc: “We do not know exactly when or how people first used fire.