B. an endless summer.
C. undying devotion.
D. unfading youth.
Answer:
Table of contents (C)
Explanation:
rescue : emergency
scientist : microscope
horse : blacksmith
farmer : agriculture
librarian : book :: scientist: microscope
As I see it, the librarian's profession is comprised of books. Like a librarian uses books to do her job. Whereas, a scientist does his job with the help of microscopes.
Language is a complex system that consists in the acquisition, development, maintenance and use of communication between beings of the same species, particularly the human one.
The scientific study of language is called Linguistic and there is still a debate about how the language was born. Some authors like Rousseaou argue that language originated from emotions, others like Kant held that is from rational and logical thought.
Human language has the properties of productivity and displacement, and relies on social conventions and learnings. The complex structure allows a wider range of expressions that any known system of animal communication. It is thought that it was born during the early times of evolutions of the hominins, time when they were awareness of the others around them and share intentionality about what to do with the society they were creating.
I hope that this answer help you. Regards.
b. You should wear a helmet and other protective gear when riding a bike.
c. Timothy wore a helmet and other protective gear when riding a bike. or
d. When riding a bike, a helmet and other protective gear should be worn.