问题描述：
请问am的过去时是was还是were?
1.He was in San Francisco last year,but I (was)in New York.
2.If I （were）,I would buy a house at the seaside.
请看以上2句,为什么I后面有跟was,也有跟were?am的过去时到底是was还是were?
1.He was in San Francisco last year,but I (was)in New York.
2.If I （were）,I would buy a house at the seaside.
请看以上2句,为什么I后面有跟was,也有跟were?am的过去时到底是was还是were?
问题解答：
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