1 . One of the most common ________ (danger) to climbers is altitude sickness, which can affect even very experienced climbers. (所给词的适当形式填空)
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2 . It’s ___________ (danger) for a green hand like you to drive at __________ speed of 120 kilometres an hour. (所给词的适当形式填空)
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3 . Many people think that sharks are________ (danger) fish in the ocean. (所给词的适当形式填空)
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4 . It is illegal and can __________ (danger)other people’s lives.(所给词的适当形式填空)
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5 . It’s believed that taking these drugs may seriously __________ (danger) your health.
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6 . The rare species in danger _________ disappearing should deserve more attention from us human beings. (用适当的词填空)
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