Question

Fill in the blanks with appropriate passive formof verbs :-
Vegetable oil ______ (know)since
very old times. No household can
got on without it, for it _____(use) in cooking. Perfumes _____
(prepare) from the oils of certain flowers.​

Answer 1

Answer:

is known to , is used , are prepared

Explanation:

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Answer 2

Answer:

are known

is used

are prepared

Explanation:

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