Hola ayuda plisss todo?

Verb to be : 1 is2 are3 is 4 am5 is6 is7 are8 is9 is10 arerewrite the sentences : we're friendsthis letter's for you i'm at schoolshe's in the kitchen he's on the phone they're on holiday our teacher's greatthis postcard's from tonyyou're at home change the sentences into negativeisn't smallaren't oldisn't tall i'm not shortaren't 13isn't from salvakiaisn't red isn't from germanyisn't markaren't pencil - casechange the sentences : is maria sixis he on the phone are you from britianare emma and kate on holiday is tibor in football teamare the pens in the bagis the watch green is it from america is your name benare the books on table.