The sentence that best describes the symbolic meaning of gold in the poem is The wonderful things in life that do not last.
This poem uses a very important parallel where it shows the word Gold as a precious or perfect thing in this line "Nothing gold can stay". We have another example that talks about how things that we appreciate in life are not eternal and we have to live them when they are happening in the line "Nature's first green is gold".
The other options are not possible because the poem has a constant element of transition from one thing to another which represents temporal things.
It made it hard to invade them<span />
The adverb, of course, is quickly and it modifies a verb, ran. How did she run? Quickly. Then your answer is "verb"
Find something littered, take a picture, clean it up and take another picture of it cleaned, then post the before and after pictures to your social media platform with the hashtag: #trashtag