问题补充:
(·陕西宝鸡二检)The course about Chinese food attracts over 100 students per year, up to half are from overseas.
A. in which
B. for whom
C. with which
D. of whom
答案:
A. in which
B. for whom
C. with which
(答案→)D. of whom
解析:选D考查非限制性定语从句。句意:这门关于中国饮食的课程每年都吸引100多个学生,其中一半是留学生。of表示“……的一部分”,关系代词whom指代100 students,在从句中作介词of的宾语。