Consider the following premises. For all x_2, if x_2 makes tea, then x_2 is playing a game. For all x_2, if x_2 plays a game, then x_2 is working. For all x_2, if x_2 works, then x_2 is making tea. Can we infer the following from them? If we can, name the inference rule being used: For all x_2, if x_2 works, then x_2 is making tea.
That is one of the premises. Therefore, the answer is yes.