Working parents usually don't have enough time ______with their children,[ ]

A. stay          

B. stays          

C. staying        

D. to stay

阳和汤除有熟地、麻黄、炮姜炭、鹿角胶、生甘草外还有（）。

A.桂枝、半夏

B.肉桂、白芥子

C.桂枝、紫苏子

D.肉桂、附子

E.桂皮、莱菔子