I had an English teacher like this once. She was notorious for giving students grades off the rubric. (Such as a grade below 30 even though the lowest grade on the rubric was 60). I recommend talking to your principal, parent or another teacher regarding this.
The correct answer should be infinitive.
The most basic verb form as seen in dictionaries are the infinitive verb forms.
Answer:
Is used as an energy source.
Now I'm confident : )
Answer:
Briefly introduce and explain each visual
Explanation:
This helps communicate to the audience the purpose behind the visual and why you chose it in the first place.