Answer:
Robots are changing the world by helping humans do things better (with greater efficiency) and doing things that were not possible before. Robots facilitate disaster response, augment physical abilities, serve in areas where interaction with people is needed, and enable exploration beyond the boundaries of Earth
Explanation:
Give me some choices if choice are not there
Then it is Unexpected in the blank
Answer: Linking words and phrases are used to show relationships between ideas. They can be used to join 2 or more sentences or clauses (a clause is a group of words which contains a subject and a verb). Linking words/phrases can be used to add ideas together, contrast them, or show the reason for something.
It is a compound and u can tell that by the commas
