Find the part of the given sentence that has an error in it. If there is no error, choose 'No error'.
Shapes that are impossible to make of machining can be printed.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. to make of machining.
The use of preposition "of" is wrong here.
The correct preposition will be "by" to emphasise on the process of machining.
"By" is a preposition which when used with -ing form describes a process or how to do something. Here, the -ing form is machining, a process of using machines to do something.
Hence, the correct sentence will be "Shapes that are impossible to make by machining can be printed".