问题
选择题
—Must I turn off the gas after cooking?
—Of course.You can never be ________ careful with that.
A．enough
B．too
C．so
D．very
答案
答案：B
考查英语中固定句型“cannot/can never be too...”。意为“越……越好”或“再……也不过分”，所以选B.。句意为“你越小心越好”。