更新时间：2024-04-08 09:09:15作者：admin3
i am already finished my homework我已经做完功课了
already是已经做了的
yet是现在的意思
i already finish the homeork
i am not finish the homewrok yet
havebeento、是已经去过了,现在已经回来了i have been to shanghai.
havegoneto、是已经去了，有可能在路上，也有可能已经到了，反正不在miss wang has gone to shanghai。yet:he has not heard from his friend yet.
already:they have already finished their homework.
ago:i have been to tokyo three years ago.
before:he was a teacher before 2008.