I like going back to because I can see all my friends again

I like going back to because I can see all my friends again (опять). I (1)____to be at school by 9oclock on the first day, so I (2)____run. At school I meet my friends and we (3)____ go to our classroom. We get information about our new classes and we (4)____get our homework diaries and timetables. Then we (5)_____ to find our classes and meet our teacher. 1)A/ DON'T HAVE TO . B/ MUSTN'T . 2) A/ MAY . B/ HAVE TO. 3)A/ SHOULD . B/ SHOULDN'T. 4) A/ DON'T HAVE TO. B/ MIGHT. 5) A/ HAVE. B/ MUST .