题目内容：

Jim is tall,but his sister,Mary,Kathy and Jenny,_____short A.are both B.all are C.
A.are both B.all are C.are all D.both are是A,C,

优质解答

C
Mary,Kathy and Jenny是三个人,不能用both.
all要放在系动词are的后面.
不明白的再问哟!请记得采纳,多谢!