He ________ the workers together and spoke to them in the old hall of the farmhouse．
A.expectedB.collectedC.calledD.shouted在线课程C
解析：call sb together“把某些人召集到一起”，其它动词含义不符。
拓展：相关短语call on sb“拜访”；call on sb to do sth“号召某人做”；call at a place“去某地拜访”；call for sb“(到家)找某人”；call for patience“需要耐心”。