Question

I        into robots and used to make mobile phones as well as help with medical operations.

A．have put

B．have been put

C．had put

D．had been put

Answer 1

B

考查时态。句意：我被放入机器人不但用来制作手机还用来帮做做医疗手术。可知本句描述已经完成的动作，我是put into的动作对象，故选B。