单选题 The lecture was expected to start at nine，but it Was delayed an hour．

【正确答案】 C

【答案解析】本句的关键是对“be expected to do sth．”及“delay”的意义理解。“be expected to do sth．”相当于“be supposed to do sth．’意为“应该做某事，期待做某事”：“delay”意为“延迟，耽搁”。