She works nightly at the hospital.
The prepositional phrase is " at the hospital "....the object of the preposition is " hospital ".
Answer: Present
Explanation:
They are singing a group song in present
They sang a group song is past
The are going to sing a group sog is future
Key word is are
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Question 2- to address public concern.
question 1-to remain unbiased?? im not sure ab that one