Question

active voice . a passenger train had been saved from derailment by the chief officer​

Answer 1

Explanation:

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. ... Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell.

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Answer 2

Explanation:

Here is your required answer.

Chief officer had saved a passenger train from derailment.