english900
english900英语九百句美音版(编辑修改稿)
6 years. 我们认识有六年了。 260. It has been a long time since last came here. 自从我上次来这里已经有很长时间了。 261. Have you seen Mr. Smith recently? 最近你见过史密斯先生吗。 262. They39。 ve been working on this project since last