Memory MODAL VERBSVersión en línea FIND THE PICTURE AND THE CORRECT SENTENCE por Silvana Garcia YOU MUSTN'T USE YOUR MOBILE PHONE AT THE LIBRARY. YOU HAVE TO ARRIVE ON TIME AT SCHOOL. YOU DON'T HAVE TO STAY ALL NIGHT STUDYING. YOU DON'T HAVE TO EAT AT SCHOOL. YOU HAVE TO WEAR A UNIFORM YOU MUSTN'T FIGHT AT SCHOOL YOU MUST STUDY FOR YOUR EXAMS. YOU MUST DO YOUR HOMEWORK