El libro Four Corners 4 - Unidad 7 Lección D

at a time in the past, often used to introduce a fairy tale or fictional story

relating to or characteristic of robots, typically displaying automated or mechanical behavior

a chair with wheels that is designed particularly for the use of disabled persons

a state of being free from pain, worry, or other unpleasant feelings

very necessary for a particular purpose or situation

books, movies, etc. about imaginary things based on science

to have actual presence or reality, even if no one is thinking about it or noticing it

the latest or most advanced level of technology, design, or knowledge in a particular field

an old person, especially someone who is retired

to guess the value, number, quantity, size, etc. of something without exact calculation

to become less in amount, size, or degree

all the individuals who work in a particular company, industry, country, etc.

a lack of something needed, such as supplies, resources, or people

a period of time in which someone no longer works due to old age

a failure in the progress or effectiveness of a relationship or system

an order, particularly given by someone in a position of authority

a way of communicating emotions or attitudes through movements and positions of the face, such as smiling, frowning, or raising eyebrows

showing signs of future success or potential