What does Russia's alleged independence have to do with Russia in 1914? Russia was still an empire in 1914, and there was no revolution there until February, 1917 (by the Julian calendar, March by our calendar). It's kind of difficult to answer a question which is not based on reality. Russia was independent in 1914 when it was the Russian Empire, it was independent in 1917 when the women from the St. Petersburg (then called Petrograd) munitions factories marched down the Nevsky Prospect, leading to the abdication of the Emperor Nicholas II ten days later, and it was independent in October, 1917 (November by our calendar) at the time of the Bolshevik revolution. I suggest that your teacher's question is nonsensical. Without knowing what your teacher means by "independence" in this context, it is almost impossible to give you a coherent answer.
Here are some links that might help you:
The revolution of February, 1917.
The revolution of October, 1917.
Also of great value in understanding the revolutions in Russia is the book Ten Days that Shook the World
, by John Reed. Reed was an American journalist who was in Russia working on an "in-depth" article on the Russian revolution (the one in February) for The Masses
, a highly innovative American socialist magazine, when "Red October" took place. Reed already knew all the principle actors, and was an eyewitness to the October revolution. Reed is buried in the Russian necropolis in the wall of the Kremlin.
Is your teacher perhaps a communist or a socialist?