Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
Pioneers, ______ in isolated areas of theUnited States, were almost totally self-sufficient.
A.who living
B.living
C.lived
D.that lived

Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
The government has spent £1 million on an advertising ______ to encourage energy conservation.
A.campaign
B.promotion
C.operation
D.enterprise

Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
A nuclear reactor releases ______ which is dangerous to the environment.
A.radiation
B.heat
C.energy
D.carbon dioxide

Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
Solar energy can be changed ______ electricity.
A.in
B.to
C.into
D.for

Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
The amount of solar energy that reaches the earth depends ______ the atmosphere.
A.to
B.in
C.on
D.with

Choose the word that has the main stress placed differently from the others
A.release
B.supplies
C.nuclear
D.convenient

Choose the word that has the main stress placed differently from the others
A.electricity
B.geothermal
C.alternative
D.radiation

Choose the words that has the underlined part pronounced differently from that of the others.
A.polluted
B.consume
C.nuclear
D.fuel

Choose the words that has the underlined part pronounced differently from that of the others.
A.heat
B.great
C.release
D.reach

Choose the word that has the underlined part pronounced differently from that of the others.
A.scatter
B.nature
C.danger
D.race