问题补充:
The employers often give the job to they believe have work experience with a strong sense of duty.
A. whoever
B. whomever
C. who
D. those who
答案:
A. whoever
B. whomever
C. who
(答案→)D. those who
解析:本题易误选A。注意空后have的主语必须是复数,由此可排除A,whomever不能作主语。who含有疑问,所以D符合语法和语境。