To identify the incorrect usage in the sentence, let's examine each underlined part:
Thus, the part that violates the correct usage of English grammar is only 4.
Identify the part of the sentence that contains an error:
"Neither the manager nor the employees ___ willing to accept the new policy."
Find the missing code:
L1#1O2~2, J2#2Q3~3, _______, F4#4U5~5, D5#5W6~6