单选题 The plan had been ______, which made him very angry.
【正确答案】 A
【答案解析】[考点] 考查词组词义辨析。
[解析] 句意：那项计划已经被取消，这使他很生气。call off取消，放弃；call up使人想起，打电话；call in召集，请……来；call on拜访，请求。