用介词+which/whom完成下列句子
Thereusedtobeatime_____theChinesepeoplestruggledforfreedom.
Helivesinanoldroom,theroof_____hasbeendamagedinthestorm.
Inourclassallthefiftystudents,onlyone______didn'tpasstheexam,tookpartinthefinalexam.
Theway_____onestudentstudiesmightbequitedifferentformthatofanotherstudent.
Canyouseethedesk______thereisabookandtwopens?
Theman______Isharetheroomisayoungteacherfreshfromcollege.
Heworksinafactory,attheback____thereisariver.