I went to the city, but my parents            at home.

A．got

B．remained

C．staying

D．remaining

使髋关节伸展并能使膝关节屈曲的肌肉有()

A．股二头肌 

B．半腱肌 

C．半膜肌 

D．缝匠肌 

E．股直肌