1 . That electric b________ is very bright.
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2 . Our light is broken suddenly. We’ll change the ________ soon.
A.wire | B.cable | C.battery | D.bulb |
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3 . Thomas Edison invented the light b________ in 1879.
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4 . You can buy many ________ (bulb) in the shop.
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5 . —What was invented by Thomas Edison?
— ________. They make nights bright.
— ________. They make nights bright.
A.Light bulbs | B.Telegrams | C.Radios |
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