1 . My father is a c_______ motorist; he never does any dangerous driving.
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2 . The scientists are c_________ about using the new medical treatment on humans.
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3 . As for those Internet users,they should be ________ (小心的) when making friends online.
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4 . I’ve always been ______ (谨慎的) about giving my address to strangers. (根据汉语提示单词拼写)
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5 . They should be more ________ (谨慎的) about the arrangement of such an activity. (根据汉语提示单词拼写)
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6 . I’m __________ (谨慎) about what I say because careless remarks will hurt one’s feelings. (根据汉语提示单词拼写)
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7 . Tom is so c__________ a driver as never causes accidents. (根据首字母单词拼写)
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