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10. Tell where sentence is in passive form. The human beings greatly broadened their
knowledoe on research in space.
a. Their knowledge on researcs is greatly broadened by the human beings.
b. Their knowledge on research was greatly broadened by the human beings.
C. The human beings was greatly broadened by their knowledge on research.​


Sagot :

Answer:

A. Their knowledge on researcs is greatly broadened by the human beings.