The correct spelling is FURNISH!
It means to fill a place with furniture... :)
The correct answer is eat
The main verb is eat, however, did is also a verb but it is used in order to formulate the question regarding the eating itself.
I think the answer should be B, to me it makes much more grammatical sense
“Everybody must do THEIR share in cleaning up the polluted beach.”
I hope this helps! Feel free to correct me if I’m wrong
Answer:
robots are machines that use a computer brain to think
