问题

Metal ______making machines and many other things.

A:used to
B:is used for
C:is used as
D:is used to

正确答案是：

同类题型

This math question is too difficult. Can you help me

The senior three students in our school received word last week_____some excellent students hadbeen admitted toPeking University without taking the exam.[ ]

his ability of speech, he has madeuse of each chance.

She is _____ careful girl ______ she hardlymakes mistakes in the exam

_____ the right decision _____ the future is probablythe most important thing we will ever do in our lives