answer:As we go about using our brain, the synaptic connections between the neurons break and form all the time- new connections are made while old ones might be broken… thats how we remember some things very quickly and forget some others.. thats also why practice makes us perfect- stronger and persistent synaptic connections are formed as we get accustomed to specific things… So, with the synaptic connections particularly strong between neurons that had processed and stored French language while you prepared for the exam, you tend to remember and use French words more involuntarily.. in other words, we can also say, that like the computer has a RAM or main memory to store recent and relevant data, you also have a main memory that had especially stored French words… the rest of the memory is in the hard drive… so if you have to study for a Spanish exam, you will send the French data to your hard drive and retrieve Spanish data into your memory for easy and quick reference during exam!