If we don't______, we shall destroy ourselves.
A. change the water, air and the earth
B. improve our technology
C. try our best to save the world
D. educate people
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Why there are fewer plants, trees and flowers in Holland now？
A. Because there has been a lot of pollution there.
Because there was a shortage of water.
C. Because many plants, trees and flowers have been destroyed.
D. Because Holland does not need so many plants, trees and flowers.
In this passage a "friend" can be______.
A. a workmate
B. a football teammate
C. a boy or a girl
D. all of the above
A．At a museum.B．In a store.C．In a classroom.D．In a library.
At a museum.
B. In a store.
C. In a classroom.
D. In a library.
______the ground covered with ice, the road has become very slippery.
At
B. Along
C. On
D. With
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