1 . 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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2 . 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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3 . He is generous and ________ (caution), so you can depend on him.
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