Our employees were to wear casual clothes every Friday until one of them came to the office wearing a fishnet tank top. Why didn't you me help you with packing? You know I’m a pro by now with all the business trips I've taken.

Hmmm

Explanation:

For the second one, the word for the gap is LET.

The first one is a bit confusing cuz I can think of two or three words to fill it. I'll just suggest them then... ALLOWED or PERMITTED.

“Nature“ – Ralph Waldo Emerson

“Woman in the Nineteenth Century“ – Margaret Fuller  

“Walden“ – Henry David Thoreau

"Orphic Sayings" - Amos Bronson Alcott

Explanation:

Nature is a book written by Ralph Waldo Emerson (1803 – 1882) published in 1836. The book has a form of an essay, where the author discusses the relationship between humans and nature. According to Emerson, a man should find a sense of his life in nature and the universe that surrounds him and forget about money and any material goods.

Woman in the Nineteenth Century is an essay book by Margaret Fuller (1810 – 1846), published in 1843. In this essay, Fuller explains a women's position in society and explains that they aren't less capable than men. She criticizes gender inequality and society for establishing gender hierarchies and restricting women's rights.

Walden (Walden, or, Life in the Woods) is a book that consists of 18 essays by Henry David Thoreau (1817-1862), published in 1854. Walden describes how simple and pleasant our lives could be, based on his life in nature, in the cabin he built at Walden Pond.

Orphic Sayings is a book of 100 aphorisms by Amos Bronson Alcott (1799 – 1888), published in the transcendental journal Dial between 1840 and 1842. These sayings show us the mystical and transcendental idealism of Bronson Alcott and reveal some of his thoughts about life, nature, faith, time, etc.