问题
选择题
Don’t stand by when you come across________ have difficulty in supporting their family because of serious illness.
A．Who
B．Whoever
C．Whichever
D．Whomever
答案
答案：B
题目分析：句意：当你遇到因为重病难以养家糊口的人不要袖手旁观。这里come across后面是宾语从句，宾语从句中缺少主语用whoever引导宾语从句，相当于anyone who，whomever在从句中做宾语，whichever“无论哪个”，who引导宾语从句的意思是“谁”，所以选B。