Fill in the blanks with suitable prepositions. Although the Braille system gained immediate popularity (a) — the blind students at the Institute in Paris, it had to gain acceptance (b) — the sighted (c) — its adoption (d) — France. This support was necessary because sighted teachers and leaders had ultimate control (e) — the propagation of Braille resources. Many of the teachers at the Royal Institute (f) — Blind Youth resisted learning Braille's system because they found the tactile method (g) — reading difficult to learn. This resistance was symptomatic of the prevalent attitude that the blind population had to adapt (h) — the sighted world rather than develop their tools and methods. (i) — time, however, with increasing impetus to make social contribution possible (j) — all, teachers began to appreciate the usefulness of Braille’s system.