Professor Zhang gave all the textbooks to all the pupils except who had already taken th

问题补充：

Professor Zhang gave all the textbooks to all the pupils, except who had already taken them.

A. these

B. ones

C. the ones

D. the others

答案：

A. these

B. ones

(答案→)C. the ones

D. the others

解析：those who...意为“……的人”，由此可排除A项。句中出现了all the pupils，由此可知题意为“除去……的学生”，故D项排除。ones表泛指，the ones表特指。