As stated in paragraph 2, machines which are driven by AI can now _______ A. find out all the mistakes in students' papers B. grade almost all types of fill-in-the-blank questions C. mark st
As stated in paragraph 2, machines which are driven by AI can now _______
A. find out all the mistakes in students' papers
B. grade almost all types of fill-in-the-blank questions
C. mark student writing automatically
D. be fully developed by teachers