Helen ______ her keys in the office so she had to wait until her husband ______ home.

A．has left; comes

B．left; had come

C．had left; came

D．had left; would come

解释下列粗的字词。

不治将恐深（  ）  

火齐之所及也（  ）  

疾在腠理（  ）  

扁鹊复见（  ）  

臣是以无请也（  ）  

扁鹊望桓侯而还走（  ）