Solution:
The word 'on' in the 2nd part of the sentence needs to be replaced with 'at'.
Choose the part that has error. A mother who always (1) connives on the (2) mistakes of her kids (3) is their worst enemy. (4)
Choose the part that has error.
A mother who always (1) connives on the (2) mistakes of her kids (3) is their worst enemy. (4)
