Add -ed without a spelling change: accepted, deserved, complicated,
Change y to i and add -ed: applied, qualified, relied,envied,
A progressive form of a verb is formed with the ending "-in": the only verb form in the options that is formed with the ending "ing" is in option b.
The correct option is b: will have been falling. This tense is the future perfect progressive tense.
Answer:
what do you want to talk about? ;)
"And this same flower that smiles today" because it's making an object do life-like things
1. endurance
2. the elements
3. antiserum
4. musher
5. tundra
6. epidemic
7. indigenous