Question

оброзовать форму множественного числа
this envelope
this factory
this hotel
this rule
this club
this man
this deer
this game
this volcano

Answer 1

 envelopes. 
factories
hotels
rules
clubs
men
deer
games
volcanoes

Answer 2

these envelopes
these factories
these hotels
these rules
these clubs
these men
these deer
these games
these volcanoes