问题 选择题 The students ________ are expected to pass.A．were taught by Professor DeaconB．whom were taught by Professor DeaconC．when were taught by Professor DeaconD．Professor Deacon taught 答案 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。
