Question

I was riding along the street street and all of a sudden a car cut in and knocked me down

You can never be __careful in the street .
A much B very C so D too
这道题为什么用too 不用其他几个选项 说下原因

Answer 1

never be too ... 意思是：再...也不为过，永远也不会嫌...太过头，等等意思。
never be too careful in the street翻译为：在街上再小心都不为过。
而其他选项不符合整段话的语境。

Answer 2

can never...... too是越--越--的意思.在这里是越小心越好