问题
选择题
It was reported that many helicopters were sent there _________the missing passengers.
A．in search of
B．in need of
C．in charge of
D．in time of
答案
答案：A
考查词组：A. in search of寻找B. in need of需要C. in charge of负责D. in time of在…时候，句意是：据报道很多直升飞机被派到那里去寻找失踪的乘客。选A。