题目内容
【题目】这是在两国交战的时期。
when the two countries were at war.
【答案】This / It / That was a time
【解析】This / It / That was a time表示“那是一段时间,那是一个时期”,后面when引导定语从句,先行词time在定语从句中作时间状语。根据后文可知时态为一般过去时,所以答案是This / It / That was a time.
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