My brother and sister are ___________ doctors.A:all B:both C:each D:any

问题描述:

My brother and sister are ___________ doctors.
A:all
B:both
C:each
D:any

B:both

B:both 表示两个
A:all 3个以上

both
all是三人以上..
each也是三人以上.
any是任何的意思.
both是两者都的意思.