Question

Fill in the blank.

The teacher knew all ___ the problem.

Answer 1

here is ur answer

all of the problem.

pls mark as brainliest

Answer 2

The teacher knew all about the problem.

For this question, the teacher mainly know about all problems so that the word “about” plays the important role.

The word “about” implies the little more or less than the stated number or amount.

For example, He is always talking about how clever his children are.

I wish you'd stop making jokes about my friends.