Depends which sentence you’re it is, but it’s eres
Benito Juárez and the French forces send by Napoleon III to establish a French satellite state in Mexico.
In railway signalling, an interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junctions or crossings. The signalling appliances and tracks are sometimes collectively referred to as an interlocking plant. An interlocking is designed so that it is impossible to display a signal to proceed unless the route to be used is proven safe.
English translation:
"The subjunctive is used for expressing _____".
In Spanish, subjunctives are used for expressing emotion. The word that best fits 'emotion' from the answer choices listed is deseos (desire), as it states an emotion.