[ Passive Voice of Tenses ]
The telephone ________________ by Alexander Graham Bell
A. is being invented
B. is invented
C. was invented
D. will be invented
Select your answer:
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Grammar › ViewThere are many ________ on the flower.
A. butterfly
B. butterflies
C. butterflyes
Vocabulary › View
Many years ago we suffered by …….., but we know how to go on.
A. inaudible
B. famine
C. gloomy
D. gale