Поставьте существительные во множественное число: Student, factory, volcano, sheep, bush, play, tooth, swine, water,

student – students;factory – factories;volcano – volcanoes;sheep – sheep;bush – bushes;play – plays;tooth – teeth;swine - swine;water - water;knife – knives;love – love;church – churches;gold – gold;fire-company – fire-companies;fish – fish;woman-conductor – women-conductors (conductresses);showgirl – showgirls;fireman – firemen;child – children;boy – boys;lamp – lamps;computer - computers.