It was said by us that we worked together.
EFAT can stand for Extended Factory Acceptance Test
He gave a full and accurate account of his movements.
The passive voice version would be: He said that his need for my car was urgent.
The company's rules forbid dating among employees.
He claimed that his parents had abandoned him.
Partido Nacionalista de Puerto Rico (PNPR)
Here is the book that you lent me.
Here, "that" refers to the book, which is the object of the verb "lent".
United Nations Conference on Trade and Development (UNCTAD)