题目内容：

1、The manager was concerned to hear that two of this trusted workers ( ).答案是were leaving.为什么不能用现在完成时.
2、By the time you have finished this book,your meal ( will get ) cold.为什么是将来时

优质解答

1因为前面是过去式,用了完成时态会变成过去的过去,句子的意思就不对了
2这个是错综时间条件句,前面是虚拟语气,后面是陈述将要发生的事实