Evenifhisletter（）tomorrow，it（）toolatetodoanything.
C
「句意」 即使他的信明天到也无济于事了。
「难点」 在条件句中表示现在将来的时间，需要用一般现在时，主句中使用将来时。
Although____Spanish， he attended the course.
Theopeningceremonyisagreatoccasion.Itisessential_____forthat.
He left orders that nothing _____ touched until the police arrived there.
To obtain a satisfactory result ， one must apply two（） of paint on a clean surface.
_____,hecannowonlywatchitonTVathome.