One very（ ）serious problem is energy. We get a great （ ） of energy we need from coal, gas, and oil. However, the （ ） of energy which we use is （ ） every year, and we only have enough coal, gas, and oil for the next twenty or thirty years. How will we live （ ） the energy which these things give us? Scientists are looking for （ ） to this problem. They are looking for new （ ） to produce energy. For example, they are working with new ways to （ ） energy from the light and heat of the sun. They are also working with plans which produce energy from （ ） of the oceans. All of the new methods （ ） scientists are finding are still very expensive, but perhaps they will help solve our energy problems （ ） the future. (1) A.number B.group C.price D.deal (2) A.effect B.amount C.course D.program (3) A.increase B.increasing C.had increased D.is increasing (4) A.without B.improve C.producing D.strength (5) A.key B.a direction C.a solution D.service (6) A.cost B.method C.branch D.pound (7) A.Show B.pay C.save D.produce (8) A.property B.remedy C.welfare D.movements (9) A.So that B.which C.whose D.Of which (10) A.at B.for C.In D.from

There are many problems in our modern world. One very（ ）serious problem is energy. We get a great （ ） of energy we need from coal, gas, and oil. However, the （ ） of energy which we use is （ ） every year, and we only have enough coal, gas, and oil for the next twenty or thirty years. How will we live （ ） the energy which these things give us? Scientists are looking for （ ） to this problem. They are looking for new （ ） to produce energy. For example, they are working with new ways to （ ） energy from the light and heat of the sun. They are also working with plans which produce energy from （ ） of the oceans. All of the new methods （ ） scientists are finding are still very expensive, but perhaps they will help solve our energy problems （ ） the future. (1) A.number B.group C.price D.deal (2) A.effect B.amount C.course D.program (3) A.increase B.increasing C.had increased D.is increasing (4) A.without B.improve C.producing D.strength (5) A.key B.a direction C.a solution D.service (6) A.cost B.method C.branch D.pound (7) A.Show B.pay C.save D.produce (8) A.property B.remedy C.welfare D.movements (9) A.So that B.which C.whose D.Of which (10) A.at B.for C.In D.from