用to,be或to have的适当形式填空

1。My mother __has___ some apples。One of them _is___red。2。Mary _is____my teacher。She __is___English。3。Tom___is__a pupil。He __is__ Jim。4。This ___is__ your ruler。____Am___ I right?5。You __have__ a big pear。It __is___ sweet。6。Their classroom ___has___ four windows。The windows ___is__ clean。