The machine photos is easy to operate.A.used to printing\x05B.is used to print\x05\x05C.is used to printing\x05D.used to print选C为什么空格在machine后面

The machine photos is easy to operate.A.used to printing\x05B.is used to print\x05\x05C.is used to printing\x05D.used to print选C为什么空格在machine后面
The machine photos is easy to operate.
A.used to printing\x05B.is used to print\x05\x05C.is used to printing\x05D.used to print
选C为什么
空格在machine后面

The machine photos is easy to operate.A.used to printing\x05B.is used to print\x05\x05C.is used to printing\x05D.used to print选C为什么空格在machine后面
选D
used to print是一个过去分词短语,做machine的定语；而A中的used to后面要用动词原形的print；B和C都是句子形式,但缺少主语,并且B中的to后面应该用原形,故均错误.
加油!