1 . The government has been ________ (caution) in its response (回应) to the report. (所给词的适当形式填空)

2 . Doctors are understandably ________(caution) about this new treatment. (所给词的适当形式填空)

3 . 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）

4 . Once you start the car，you must drive ____________ (caution)to keep off any traffic accidents.

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

6 . The __________ teacher gave Tom a __________ and told him never to do it again. (caution) (所给词的适当形式填空）

7 . The boss is____________(caution)about making promises. （用单词的适当形式完成句子）