YouthatlettertoJames.However，yodidn't（）.
B
「句意」 你本应该给詹姆斯写信，然而，你没写。
「难点」 ought to have written 是虚拟语气，与本句句意相符。
Of course，（）most immigrants did not get rich overnight ， but the of them were eventually able to improve upon their former standard of living.
_____ your timely advice,I would never have known how to go about the work.
He was lured into a crime he would not ____________have committed.
.If you have really been studying English for so long, it’s about time you _____ able to write letters in English.
Even if his letter（） tomorrow ，it（） too late to do anything.