Researchers at the Occidental Research Bureau has struggled for three decades to produce a man-made leaf able to absorb CO₂ from the atmosphere and convert it into chemical energy. Yet now it seems that they have at long last achieved their goal.

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Answer 1

Answer:

Researchers at the Occidental Research Bureau have struggled for three decades to produce an artificial leaf able to absorb CO₂ from the atmosphere and convert it into chemical energy. Yet now it seems that they have at long last achieved their goal.

Explanation:

The correct auxiliary in that sentence is have since it is referring to the researchers. In other words, it is a third person in the plural, so the correct auxiliary is have.

The term man-made is not wrong, but it would be better to use the word artificial, which means that nature did not create it.


Related Questions

definition of the denouement

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Answer:denouement

NOUN

the final part of a play, movie, or narrative in which the strands of the plot are drawn together and matters are explained or resolved.

synonyms:

finale · final scene · final act · last act · epilogue · coda · end · ending · finish · close · culmination · climax · conclusion · resolution · solution · clarification · unraveling · windup

the climax of a chain of events, usually when something is decided or made clear.

"I waited by the eighteenth green to see the denouement"

Answer:

the final part of a play, movie, or narrative in which the strands of the plot are drawn together and matters are explained or resolved.

Explanation:

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