I'll never(A) forget the day(B) when (C) we once spent(D) togetherB 是the day D 是 once spent

问题描述:

I'll never(A) forget the day(B) when (C) we once spent(D) together
B 是the day D 是 once spent

I'll never forget the day (that/which) we once spent togeter.
we once spent togeter.是定语从句,在句中作定语,修饰the day,而且先行词在从句中作spent的宾语,所以不能用where

C有误,应当改成which或不填.因为在后面这个定语从句中,spend是及物动词,后面必须带宾语.而when只能作状语,不能作宾语.
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