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。
Evenifhisletter____tomorrow，it____toolatetodoanything.
Theschoolisgoingthe________miletocreatethenextgenerationofsportingstarsthankstoitsuniquedevelopmentprogram.
_____,hecannowonlywatchitonTVathome.
At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.
He set up in business（）his own and was very successful.
