what is this machine( )-To make food.A for B to C at D from

This machine is unavailable. what is this machine( )-To make food.A for B to C at D from The problem is what we should do with this machine这是一个表语从句,what 在这里是什么成份, the problem is what we should dowith this machine 请问what在句子中充当什么成分 This machine is very easy to This machine is very easy to DONT TOUCH THE MACHINES ,PLEASETHIS IS AFACTORY.THESEMACHINESMAKECRISPS.WHAT DOES THIS MACHINE DO,SIR?IT WASHES THE POTATOES. This is a very expensive machine同义句转换This is( ) ( ) ( ）machine This machine is used for-----(cut) things into pieces This machine is ______(easy to undrestand) to ues. This machine,______for many years,is still working perfectly. is the price of this machine?AHowmuchBHow manyCWhatDHow this time is us a tell machine can that Your machine is not designed to run this pump what is the name ( ) the machine?填什么介词. This machine from Germany is very modern.What can you do（） it A.by B.of C.with D.at This is what I what What is this?