----Be careful not to drop the Ming Dynasty vase.--Yes we can’t be .A. too carefulB. v

问题补充：

----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

答案：

(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”