The little girls attention was suddenly caught by a rag doll which ______ put on the sofa
已帮助 人
The little girls attention was suddenly caught by a rag doll which ______ put on the sofa, and she stopped crying.
A．has been
B．is being
C．would be
D．had been
请帮忙给出正确答案和分析，谢谢！
热搜：美满霉素S