问题
选择题
Sent to the zoos in Beijing and other cities, the monkeys are reported ______.
A．to settle down
B．to settle in
C．to have settled in
D．to have settled down
答案
答案：D
词义辨析及考察非谓语动词. settle down定居,安定下来; settle in迁入.句意:被送到北京和其他城市后,据报道这些猴子已经安定下来.不定式表示具体的将要进行的动作,如果动作发生在谓语动词之前,则要用完成时态的不定式.结合语境可知选D.