——Have you noticed that Robin does have some difficulty in dealing with the task ——If so, he must be __________. A、noticed B、discovered C、recovered D、replaced
A. A、noticed B、discovered C、recovered D、replaced
【参考答案】
D 解析：句子意为：-你注意到罗宾处理这项任务有些困难了吗？-如果真是这样的话，他一定被_____。 A......