i had a good time when i was in Thailand这个是对的吗？好像“when”不能搭配过去式吧，本人拙见，可以54我脑海里似乎没有你这个说法...看楼上，am换成was ,就是正解了。 给你一句，yesterday once more 的歌词：When I was young I'd listen to the radio 。应该明明白白了。