问题
选择题
Mr Smith has_______ cancer for two years but he is still working very hard.
A．suffered
B．suffered from
C．suffered by
D．suffering from
答案
答案：B
词语辨析。根据时间状语for two years可知要用现在完成时态，排除D；suffer遭受痛苦，损害等；suffer from患某种疾病。句中宾语是cancer，癌症。所以选B。