AP Chem Exam

Hi! With the coronavirus, my teacher hasn’t been able to teach my class some of the material for AP Chemistry, and I really wanted to review topics and ask questions considering the AP Exam is right around the corner. Collegeboard updated that this AP Chem exam will only have free response questions, and I heard that those are harder. Is there anyway I can prepare effectively for them? On multiple-choice, I at least have an option to see if I’m right, but I’m really nervous about the FRQ’s. Any suggestions on how to study for it?

Also, side question. I live in New Jersey, and my school called to say it would reopen on April 20. Do you think that’s the case since coronavirus keeps spreading? I personally want to go back to school since my teachers assign more work at home lol and be with my friends again.