At first, being scared, the bird fluttered about the cage, but finally it in its new house.
A. settled down
B. settled up
C. set up
D. set down
网友回答
(答案→)A. settled down
B. settled up
C. set up
D. set down
解析:动词词义辨析题。settle down“安静下来”“起初由于惊吓鸟儿在笼子里惊恐不安,但是最终它安静了下来。”