1.) This chair is heavy lift. (to, for, too)
2.) We always say ‘please’ when asking for help. (should, can, would)
3.) This work is much Amimo to finish. (to, too, for)
4.) I wash my hands after visiting the toilet. (should, could, can)
5.) You wash fruits before eating. (must, can)
6.) You obey your parents. (may, must)