虚拟语气的几道题

1.Something must have happened on their way here.Or they___by now.

A. should have arrived B.should arrive C.would have arrived D.would arrive

答案是C A为什么不可以 A和C 我老分不清楚。

2.All my neighbors tried to help in some way.But they turned out to be actually___the way.

A.in B.on C.with D.beyond

答案是A 其他为什么不成 on the way 为啥不成

3.The manager has his employees ____ a business report every week.

A. to write B.written C.writing D.write

答案是D B怎么不成 不是have sb down吗

1. should have done 本应该已经做了某事 重点在应该

would have done 将已经做。。。

should侧重于道理，理论上应该怎样

would侧重动作的先后

2.in the way 挡道 碍事 on the way to 在去。。。的路上

3.have sb do sth 让某人做某事

have sb down 中的down是形容词