each等), 数词, 百分数, 或形容词最高级修饰。? She has two sons, both of whom are doctors.Р注意:РThere are 40 students in our class, most of whom are from big cities.РI have many friends, the tallest of whom is Lee.Р介词+关系代词Р3.若先行词为时间名词, 地点名词或reason, “介词+关系代词”可用相关的关系副词when, where, why替换?e.g. Beijing is the city _________________ he has lived ? many years.Р注意:РThe reason ________________ he was late isn’t clear.РI remember the day ________________ I go abroad.Рin which = (where)Рon which = (when)Рfor which = (why)Р介词+关系代词Р4. whose引导的定语从句, 关系代词whose可替换为“the+名词+ of + which/whom”或“of which/whom + the + 名词”?e.g.Р注意:РI know a boy whose father is a doctor.РI live in the house whose roof is red.Р= the roof of which is red.Р= of which the roof is red.Р= the father of whom is a doctor.Р= of whom the father is a doctor.