—Be careful not to drop the Ming Dynasty vase.
—Yes, we can’t be .
A. too careful
B. very careful
C. too careless
D. careless enough
网友回答
(答案→)A. too careful
B. very careful
C. too careless
D. careless enough
解析：can’t be too + adj 译为“无论怎样都不为过” (from www.nmet168.)。