The students are expected to pass.A. were taught by Professor DeaconB. whom were taught b

The students are expected to pass.
A. were taught by Professor Deacon
B. whom were taught by Professor Deacon
C. when were taught by Professor Deacon
D. Professor Deacon taught

A. were taught by Professor DeaconB. whom were taught by Professor DeaconC. when were taught by Professor DeaconD. Professor Deacon taught解析：　D解析　Deacon教授的学生，关系代词在从句中作宾语。B选项中关系代词作主语应用who。

哦，回答的不错