You____that letter to James. However ， you didn't.
A、oughttowriteB
「句意」你本应该给詹姆斯写信，然而，你没写。
「难点」oughttohavewritten是虚拟语气，与本句句意相符。
She’swornhisdesignson__________occasionsfromredcarpetstomoviepremieres.
Thecompositionscontainedsofewerrorsthattheteachergotthestudents_____oneanother’spapers.
Ilongtoalleviate__________,butIcannot.
Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
Ofcourse，（）mostimmigrantsdidnotgetrichovernight，buttheofthemwereeventuallyabletoimproveupontheirformerstandardofliving.
