【求解释】The course normally attracts 20 students per year,____ up to half will be from overseas.

问题描述:

【求解释】The course normally attracts 20 students per year,____ up to half will be from overseas.
A of whom
B for whom
C with which
D in which

A 这门课程每年一般会吸引20个学生,其中有多达一般的人来自国外.
此处应表达“其中”之意 应为of 而且指的是学生 故应用whom