When you cross the street you can never be careful.A. tooB. veryC. muchD. so

问题补充：

When you cross the street, you can never be careful.

A. too

B. very

C. much

D. so

答案：

(答案→)A. too

B. very

C. much

D. so

解析：not/never/too…enough结构意为“再……. 也不过分”或“越……越好”。