英语关于since用法的一个问题!有一个句子是：Since the government was bankrupt,many of the soldiers who were sent to quell the riots had not been paid in months.为什么要用“had been”这个过去完成时而不用现在完成时?
问题描述：
英语关于since用法的一个问题!
有一个句子是：
Since the government was bankrupt,many of the soldiers who were sent to quell the riots had not been paid in months.
为什么要用“had been”这个过去完成时而不用现在完成时?
答
这是过去完成时 是过去的过去
1) since +过去一个时间点 (如具体的年、月、日期、钟点、1980, last month, half past six)。
I have been here since 1989.
2) since +一段时间+ ago
I have been here since five months ago.
3) since +从句
Great changes have taken place since you left.
Considerable time has elapsed since we have been here.
4) It is +一段时间+ since从句
It is two years since I became a postgraduate student.
答
因为这件事发生在过去啊!