—The plane is leaving right now, but Jim hasn't arrived yet.—Well, he said he _____here on time.
A:came
B:would come
C:can be
D:will be
如图,AB为⊙O的直径,过点B作⊙O的切线BC,若tan∠BCO=12,则tan∠ACO=( )
改正下面的句子。