Celta Learning and Teaching Task

Hey, In my CELTA pre-interview Task they ask me to choose the statements which I agree with :

1) Grammatical accuracy should be the main focus of English language lessons.

2) Good actors should be good teachers because they are used to having an audience.

3) A good learner will expect to be corrected every time they make a mistake.

4) A good teacher will know the answers to any language questions that occur in a lesson

Actually I agreed with statements : 2 , 3 and 4: What do you think?

Thank you