In the aftermath of Hurricane Maria, what have many people like Sonia Negrón Bell with friends and relatives in Puerto Rico done to offer their support?

They have helped in providing relief materials and support

Explanation:

In the aftermath of Hurricane Maria, many people like Sonia Negrón Bell with friends and relatives in Puerto Rico have done a lot to offer their support. This support include provision of different materials such as food, shelter, clothing and generators.

The hurricane brought about power outage in the region affected which was the reason why generator sets were provided as an alternative.

"girls"

explanation:

a subject of a sentence is a noun or pronoun that shows who/what is performing the action (or verb) of the sentence.

in this case, the sentence states that the girls see. the girls are the ones who are performing the action, so they are the subject.

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