1 . Doctors are understandably ________ (caution) about this new treatment. (所给词的适当形式填空)
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2 . The boss is____________ (caution)about making promises. (用单词的适当形式完成句子)
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3 . The government has been ________ (caution) in its response (回应) to the report. (所给词的适当形式填空)
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4 . As far as I know, Mark is a ________ (caution) shopper who always does some careful research before he buys something valuable. (所给词的适当形式填空)
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5 . The __________ teacher gave Tom a __________ and told him never to do it again. (caution) (所给词的适当形式填空)
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6 . Once you start the car,you must drive ____________ (caution)to keep off any traffic accidents.
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7 . He is generous and ________ (caution), so you can depend on him.
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