Fill in the gaps with "mustn't or needn't"
You1)_____ hurry; you have plenty of time. You2)_____ speak during the test. You3)_____ copy your friends' work and you4)_____ open any of your books. You5)_____ write in pen; if you prefer you can write in pencil. You6)_____ stay when you've finished; you can leave if you want to, but you7)_____ be noisy. when you leave you8)_____ wait for your friends outside the classroom. Wait outside the building!
Finally, I wish you all good luck. You can begin now!