The doctor was immediately the little boy fell off a ladder and hurt himself.
A. asked for
B. sent for
C. waited for
D. cared for
网友回答
A. asked for
(答案→)B. sent for
C. waited for
D. cared for
解析：send for sb.请某人来；ask for sb.找某人；wait for等候；care for照料(=look after)、喜欢(=like用于否定句或疑问句中)。