问题
选择题
In that school, German is compulsory for all students, but English and French are_______.
A．special
B．regional
C．optional
D．original
答案
答案：C
题目分析:句意：在那所学校，德语对所有学生来说是门必修课，而英语和法语却是选修课程。A特殊的；B区域的；C选择的；D最初的。根据but可知与前面compulsory构成对比关系，选C。