You cannot ______ by her appearance that she is already over sev

You cannot ______ by her appearance that she is already over seventy.
A、say
B、speak
C、tell
D、talk
【正确答案】：C
【题目解析】：该题考查动词辨析。四个动词都有“说”的意思，tell还可意为“分辨，辨别”。本句的句意为“从她的外表你无法辨别出她已经超过七十岁了。”