(CHALLENGE) Name 3 inventions that are important in today's life.
computer, telephone, electricity, the Internet, radio, TV, airplane, automobile, etc
(N) serious study of a subject, in order to discover new facts or test new ideas: _ES_ _ R _ H
RESEARCH
(N) the process of gradually becoming bigger, better, stronger, or more advanced: _ E V _ _ _ P _ E _ _
DEVELOPMENT
(N) a piece of equipment with moving parts that uses power such as electricity to do a particular job: M _ _ H I _ _
MACHINE
(V) to make, design, or think of a new type of thing: _ N _ E _ _
INVENT
(V) to find someone or something, either by accident or because you were looking for them: D _ _ CO _ _ R
DISCOVER
Choose the correct answer: Smoking is the main (AIM/ CAUSE) of lung disease.
CAUSE
(adj) existing in nature and not caused, made, or controlled by people: N _ T_ _ A _
NATURAL
Computers are an essential part of (MODERN/ NEW) life.
MODERN
Tourism is a growing (INDUSTRY/ FACTORY) in many parts of the developing world.
INDUSTRY
(adj) relating to real objects that you can touch, see, or feel: P _ Y _ _ C A _
PHYSICAL
(N) something such as a prize or money given to someone to reward them for something they have done: _ WA _ _
AWARD
Choose the correct answer: Evening classes are one (WAY/ METHOD) of meeting new people.
WAY