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單項(xiàng)選擇題

Others argue that since the earth has endured a long string of ice ages in the last two million to three million years, any warming is（）to be temporary.

A.seemed
B.likely
C.tended
D.possible

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單項(xiàng)選擇題

In some schools children who prefer to read books rather than（）football become social outcasts (被拋棄者).

A.play
B.playing
C.to play
D.to playing

單項(xiàng)選擇題

The opposition leaders（）the government for not taking action sooner.

A.warned
B.criticized
C.threatened
D.urged