There was a time when parents who wanted ……为什么要用 whenThere was a _英语解答

There was a time when parents who wanted ……为什么要用 when
There was a time when parents who wanted an educational present for their children would buy a typewriter,a globe or an encyclopedia set.

人气：467 ℃　时间：2020-05-09 12:34:52

解答

关系副词 when引导定语从句（包括限定性定语从句和非限定性定语从句）修饰表示时间的先行词,在定语从句中充当时间状语.例如：I still remember the day when I first met Jennifer.我仍然记得第一次见到詹妮弗的那一...就是说，曾经有那么一个时期，什么时候呢，就是父母会给孩子买打字机，地球仪，百科全书等有教育意义的礼物的时期。