<span>it's necessary to add a helping verb.</span>
C is correct because they have we and a place and what they doing
Answer:
Colin's explanation of the water cycle was much briefer than the one in my biology textbook.
Explanation:
Positive affectivity has many benefits for our everyday life. Happiness and positive emotions researcher Dr. Barbara Fredrickson has theorized that positive affectivity can broaden an individual’s momentary thought-action repertoire; in other words, positive effect encourages people to be more open, engaged, and willing to be creative.
I want to say the answer is heroic because he did think it would help