英语翻译①我要两张往返车票.②他们正在设法修理它.③我们还在吃午饭,你吃过了吗?④我刚吃过午饭,半小时前吃的.⑤几天前,

1 I want two round-trip tickets
2 they are trying to fix it.
3 We are having lunch,did you have lunch?
4I had lunch just half an hour ago.
5I left my suitcase on the train to London a few days ago