早知文理百科

am的过去式was； wasbe的第一和第三人称单数过去式； ambe 的第一人称单数现在式；口语中常略作’m Inflation was so high that the notes were like Monopol...

is的过去式 was 是，be的第一和第三人称单数过去式； 例She was still half asleep when she arrived at work. 她到了上班地点时仍然睡眼惺忪。 His life w...