シス単 p.46-50

(gather a large audience)

gather a large audience

(the most important element)

the most important element

(global climate change)

global climate change

(the French Revolution)

the French Revolution

(the first quarter of this century)

the first quarter of this century

(a room with little furniture)

a room with little furniture

(the human brain)

the human brain

(CO2 in the earth's atmosphere)

CO2 in the earth's atmosphere

(private property)

private property

(a reward for hard work)

a reward for hard work

(national security)

national security

(give a cry of delight)

give a cry of delight

(a deserted road in the desert)

a deserted road in the desert

(people from different backgrounds)

people from different backgrounds

(a trend toward fewer children)

a trend toward fewer children

(get 20% of the vote)

get 20% of the vote

(a negative impact on the environment)

a negative impact on the environment

(educational institutions)

educational institutions

(social interaction with others)

social interaction with others

(an alternative to oil)

an alternative to oil