I think you should be about giving your address to strangers. It might be dangerous.A. con

问题补充：

I think you should be about giving your address to strangers. It might be dangerous.

A. confident

B. cautious

C. scientific

D. positive

答案：

A. confident

(答案→)B. cautious

C. scientific

D. positive

解析：考查形容词辨析。Confident 自信的 cautious 小心，谨慎的 scientific 科学的 positive积极的，句意为我认为对于把地址给陌生人这方面你应当要小心谨慎。这可能会很危险。