Answer: there is an error in sentence 1.
Answer:
A
Explanation:
A is true. B is false because you can use more than one, depending on the structure of the sentence. C is false because of grammar rules, and D is false because you can indeed use both, depending on the structure of the sentence.
I don’t quite understand to in my own words: to help us know what we don’t know
Answer:
E
Explanation:
It does not provide an example of how social media brought people together for a cause.
