careful you are mistakes you will make.A. The less; the betterB. The more; the fewerC.

问题补充：

careful you are, mistakes you will make.

A. The less; the better

B. The more; the fewer

C. The fewer; the richer

D. The more ; the poorer

答案：

A. The less; the better

(答案→)B. The more; the fewer

C. The fewer; the richer

D. The more ; the poorer

解析：考查比较级，句子意思“你越小心，你出的错越少”， The more修饰careful，careful的比较级，用more构成，the fewer修饰mistakes，所以选B