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PLEASE HELP!!!!!!

A team of explorers _______ the ocean floor.

A. were studying
B. are studying
C. have been studying
D. has been studying <-- (I know for certain it's not this one)

This is so confusing!!!

Respuesta :

The answer is B, a team of explorers are studying the ocean floor
This is confusing. It depends on what tense it is supposed to be in.

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