UNDERLINE THE RIGHT WORDS. 1 YOU (MUSTN'T/ DON'T HAVE TO) DO YOUR HOMEWORK IN CLASS. 2 MOST PEOPLE (MUSTN'T/DON'T HAVE TO) WORK ON SATURDAYS. 3 YOU (MUSTN'T/DON'T HAVE TO) RIDE YOURMOTORBIKE WITHOUT A HELMET. 4 PHIL (MUSTN'T/ DOESN'T HAVE TO) TIDY HIS ROOMHE DID IT EARLIER. 5 MAGDA (MUSTNT/DOESN'T HAVE TO) INTERRUPT SALLY WHEN SHE'S STUDYING. 6 WE (MUSTN'T/ DON'T HAVE TO) GO IF YOU DON'T WANT TO. 7 YOU (MUSTN'T / DON'T HAVE TO) SPEND TOO LONG IN THE SUN-IT'S DANGEROUS. 8 I (MUSTN'T/DON'T HAVE TO) GO BY BUS - MY DAD'S TAKING ME IN HIS CAR.​