达拉然下水道雇佣兵:规定了用“yesterday"这类单词去改写成过去式,用不用把正在进行时的单词变回原形？

规定了用“yesterday"这类单词去改写成过去式,用不用把正在进行时的单词变回原形？ 翻译“yesterday once more" “He had already posted the letter by five yesterday.”为什么要用介词"by"? yesterday yesterday 请用"yesterday,hurted,foot,my,his,brother,evening"组成一个英语句子，并写出翻译来？ 寻求"Yesterday once more"的简评及评价 把"Nancy walked home yesterday."改成一般疑问句 谁TOKYO东京小子的"yesterday"这首歌? “I take back what I said yesterday"怎么翻译？