问题

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;

正确答案是：

同类题型

We from his red face that he had been lying.[ ]

You must learn to consult your feelings and your reason ________ you reach any decision

对下列句中加点字的解释，不正确的一项是（）

.So often ______ inrecent years that it has almost become a rule.

______ I’m concerned about most is ______ we can collect a huge amount of money in such a short time after the war.