---Look at the machine in the corner. I haven’t seen it before. ---It ________ examining the patient...
2022-11-08 17:43:03 37次 浙江省2017年九年级英语秋季分班测试卷英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
---Look at the machine in the corner. I haven’t seen it before.
---It ________ examining the patient.
A. used to B. used for
C. is used to D. is used for
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