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。
Modern（）perhaps causes more problems than it solves.
The back garden of our house contains a lawn ，____very pleasant to sit on in summer.
_____ their help, we would not have succeeded.
John's score on the test is the highest in the class ; （）he last night.
MissGreenwas____$100fordrivingafterdrinking.
