①Half an hour gone by,but the last bus hadn't come.We had to walk home.
（时间）逝去用go by,因为半小时已经过去了要用过去式，末班车是last bus，只好走回家，有种不得不的感觉，用have to。
②Mary seems to be very worrried about the Chinses exam because she hasn't learned the texts by heart.
看上去，好像，用短语seem to be ，因为是第三人称，要用单三形式，担心担忧，用短语worry about,没背熟，没记在心里，用learn …by heart,发生在过去，对现在产生影响，时态是现在完成时。
③Since the basketball match has been postponed,we may as wall visit the museum.
前半句要用现在完成时的被动语态，have been done, 推迟，用单词postpone,不妨，用短语may as well.
④He live in Australia.with his parents all the way through Word War two.
一直用all the way ，句子主干是他一直陪父母住在澳大利亚，先翻译他住在澳大利亚，陪父母，再写时间，是二战期间。
⑤Since I graduated from Nanjing University in 1985,I have kind of lost touch with my classmates.
翻译时时间一般放在后面，自从since 引导句子，先翻译我从南京毕业，然后把时间写上，再翻译失去联系，和大学同学。失去联系可以用kind of 修饰一下。
