34. My friend Peter, ______ had been on a visit to America, returned yesterday.
A. which
B. that
C. who
D. whose
原题解析:本题考点为修饰人时,关系代词的区别。
在定语从句中,作主语一般用who或者that;做宾语用whom, who或that;作定语并具有物主性质的用whose。横线处做主语,应选who或者that,在非限制性定语从句的情况下,应用who。正确答案为C。
参考译文:我的朋友皮特,他去美国参观,昨天回来了。