第1个回答 2011-08-14
When he arrived in the supermarket , he did not know which kind of water he should buy. 个人觉得除了时态的问题,没有什么语法问题了
when引导的是状语从句,一般跟短暂性动词,那样的话直接用过去时arrived 就可以了,不需要用过去完成时 had arrived
另外,should等情态动词后面直接跟动词原形 所以应该是should buy而不是should bought本回答被提问者采纳
第2个回答 2011-08-14
我想前后句应该时态一致才对。 had arrived 和 did 应该选择一种时态
第3个回答 2011-08-14
when he arrived at the suppermarket ,he didn' know what kind of water he should buy.