以表示推测或可能性，但would last不能表示延续到将来某一时刻的动作，所以C) would last错误。因为D) has lasted是现在完成时，表示到现在为止已经完成的动作，不能表示延续到将来某一时刻的动作，所以也不正确。
注意事项：由于本时态是由将来时和完成时融合在一起的，所以关于本时态的注意事项，可以参考“一般将来时”和“现在完成时”的有关注意事项。
12)将来完成进行时：shall have been doing ，will have been doing
例：By the end of next month, the project will have been being worked for 3 years. （到下个月底为止，这项工程就已经不停地进行了3年了。）（被动语态）
13)过去完成进行时：had been doing
例：The old clock had been being taken apart of and fixed up again for several times by my 10-year old son before I came back home.（我回到家之前，我10岁大的儿子已经把这个旧钟表拆卸并重新组装了好几回了。）（此处强调“拆卸”和“组装”这两个过去的过去的动作一直在反复进行。）（被动语态）
14) 过去将来进行时：should be doing , would be doing
例：The government promised that a new highway would be being built next July.（政府承诺说第二年7月将有一条新的高速公路正在修建。）（此句的时间状语是具体的将来时间，所以最好用将来进行时。）（此句为被动语态）
15) 过去将来完成时：should have done , would have done
例：I believed by the end of that year an advanced version of that software would have been developed, but I was wrong.（我坚信到那年年底为止，那个软件的新版本将被开发出来。但是我错了。）（此句为被动语态）
16) 过去将来完成进行时：should have been doing , would have been doing
例：They said that by the end of the following month, the project would have been being worked for 3 years. （他们说到第二个月底为止，这项工程就已经不停地进行了3年了。）
高中16种英语时态总结归纳
