答案的确是D,但是一楼解释有误.
1.此句为强调句型,只是被强调部分few people另外还被一个非限制性定语从句who have come to ask for the position所修饰而已.
2.强调句型的结构为:It is/was + 被强调部分 + that/who/whom + 句子未被强调部分.
如果被强调部分指人,则引导词除了用that之外,也可以用who/whom.
而that可以运用于任何被强调部分.
3.判断一个句子是不是强调句型的最佳方法是:
去掉it is/was和引导词that/who/whom后,剩下的部分能够构成完整的一个句子(有时需要调整句序).
如果剩下部分不能构成一个完整的句子,就不是强调句型了.
如:It is at night that he likes surfing the Internet.
去掉it is和that,剩下为:he likes surfing the Internet at night,该句完整,所以它是强调句型.
但是:It is night that he likes surfing the Internet.
则去掉it is和that后,剩下为:he likes surfing the Internet night,则它就不是强调句型了.
4.该句去掉it is和第二空的that后,剩下句子为:
Few people,who have come to ask for the position,(I think) are fit for the job.
其中I think可以视为插入语,所以该句也是完整的,即其为强调句型.