It depends on what’s happening like if someone is implying something they are suggesting something but if your stating something you’re trying to get your statement across so you would firmly say what you’re saying.
Answer:
In all honesty, social media is a crazy thing. So he probably thinks we're all crazy.
Explanation:
Because we're all cray cray.
Answer:
The third one is the correct answer
an artist, an active person, and a food junkie.
a roller blade pair, a field hockey stick, a book, papers, and makeup.
Answer:
“and bought a new pair of shoes”
Explanation:
there is no subject to where it can stand alone. Also the conjunction is and.