the new machine can ____ automaticallya.shut up b.shut off c.shut down这3个词组都有关闭的意思,可为什么选B?有什么区别他们之间?

I have no idea how I can operate the new machine.I have no idea ___ ___ operate the new machine. I have no idea how i can operate the new machine.(改为简单句） The _____ of a big new machine can be hard to learn.(operate) There is new machine at this school.Except the mechanic.nobody can operate是什么意思 Can you o____ the machine? 英语 the new machine has been tested the problem is (how) we can( operate) the new machine( on) such (a) short time.英语挑错,括弧中的,为什么? they 've bought a new machine for the factory翻译 I don't know how I can use the new machine（同义句）she has hardly had anything the whole day,--- ---? The machine can do the work for _____(quick) 翻译：　The machine can do the work of three people Can you see something about thia _____ machine?A.new greatB.great newC.a new greatD.a great new 一道英语基础转换题,..l have no idea how l can operate the new machine(改为简单句)l have no idea ____ ____operate the new machinehow to?能说明下原因么，怎么感觉句子不通顺。 the machine can cut the paper into pieces改为同意句the machine can ______the paper ______ can you tell me some s_______ in using the machine? who can o----- the cutting machine in your factory who need this device-floppy to usb conversion?Well,now the floppy for embroidery machine,knitting machine,label weaving machine etc are junk,we have new products fusb simulate floppy to usb conversion which can replace it.anyone who wanna buy this de Can you tell me___?A.what's the matter with the machine B.what the matter is with the machine