----Who is the man in the blue car?

----He is ________ father.

A．Kate’s and Mary’s

B．Kate and Mary’s

C．Kate and Mary

D．of Kate and Mary’s

小儿囟门闭合时间多在（）

A.6—10个月

B.6～12个月

C.12～18个月

D.12～20个月

E.18～24个月