You____thatlettertoJames.However，youdidn't.
A、oughttowriteB
「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。
Ofcourse，（）mostimmigrantsdidnotgetrichovernight，buttheofthemwereeventuallyabletoimproveupontheirformerstandardofliving.
_____enoughtimeandmoney,theresearcherswouldhavebeenabletodiscovermoreinthisfield.
Evenifhisletter____tomorrow，it____toolatetodoanything.
Nancywassurprisedthattheyhave（），Theyseemedtobeahappycouple.
Josephwasverylucky____withhislife;healmostdidnotgetoutoftheroom.
