, I’m anxious about the coming exam–Come on, boy You’ve got to have confidence inyourself ___ you will make it

This passage has too many long sentencesI’m afraid they will be hard for most of the studentsCould you help to _______ them?

Having checked the doors were closed, and ___ all the lights were off, the boy opened the door to his bedroom.

I’ll see _____ it.[ ]

He is a pop star. He is helpful and .