单项选择题

We shall destroy ourselves if we don't ______.

A．improve our technology in planting trees
B．try our best to save the world
C．hear about the record called NO ONE'S GOING TO CHANGE OUR WORLD
D．change the earth

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热门试题

单项选择题

There are fewer plants, trees and flowers in Holland now because ______.

A．there has been a lot of conservation in Holland
B．Holland does not need so many plants, trees and flowers
C．many plants, trees and flowers don't grow there any more
D．some plants, trees and flowers are dangerous

单项选择题

What is the most important thing for us to do to save our world

A．We should know what would happen in the future.
B．We should plant more trees and flowers.
C．We should clean the banks of our rivers.
D．We should know we should do and begin to do it now.