动物在活动时常常忘不了竖起耳朵，并且还不时地转动头和耳朵的方向，这是因为[ ]

A.向其他动物示威

B.判断声源的位置

C.动物的一种习惯动作

D. 赶走小虫

__put everything back than the phone rang．

A．No sooner had I

B．Hardly had I

C．No sooner I

D．Hardly I had