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1. By the time he was twelve , Edison had built a chemistry lab for himself 。2. The last ( first ) time I went to China ...
查看更多 2025-05-18
1. 过去将来时一般由“助动词would(should)＋动词原形”构成,也可以用“was (were) going to＋动词原形”来表示过去将来时表示从过去某一时间看将要发生的动作或存在的状态,这种时态常用在宾语从句中I thought...
查看更多 2025-05-12
