?被

... in vain徒劳,白费力- be replaced by被.所取代- back of在.后面- ...

?所代替

... differ in... 在...差别 be replaced by 被...所代替 on schedule 定时间表,准时 ...

?所取代

...高考所有完形填空的词组总结！完形答...-爱... ... concentrate on ... 全神贯注于...- be replaced by 被...所取代- for the purpose of... 为了... 因...起见- ...

?所与代

... concentrate on ... 聚精会神于... be replaced by 被...所与代 for the purpose of... 替了..., 果...伏睹 ...