- The water was left running all night long.

- Yes. It seemed that John ___. He was the last one to leave the lab.

A．was to be blamed

B．was to blame

C． had been blamed

D． should be blamed

下列哪些是月经先期肝郁血热证的主要临床表现（）

A.月经提前

B.胸胁或小腹胀痛

C.经质稀薄

D.量或多或少，色紫红

E.舌苔薄黄，脉弦数