单选题 The bill for social care service for children could be higher than ______ because the organization has repeatedly failed to keep track of costs.

【正确答案】 C

【答案解析】[解析] 语法：比较级
1．主语bill是预算的对象，应使用被动语态。因此C为正确选项。
2．经常出现的比较级形式有：...than scheduled(照比日程)、...than planned(照比计划)、...than anticipated(照比预期)等。