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 |
D
解析试题分析：句意：-看看角落里的机器，我以前没有看到过它。-它是用来检查病人的。be used to do sth="be" used for doing /sth被用来做······，be used to doing sth 习惯于做······，used to do sth,过去常常做某事。结合句意，故选D。
考点：考查动词词组用法。
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