单选题 When the chairman visited the district hit by the earthquake, he often signaled for the children to come to him.

【正确答案】 C
【答案解析】signal for发信号，打信号示意。beckon(用手或头的动作)示意，召唤。deny否认，拒绝。adore喜爱，爱慕。allow允许，承认。