OE


From the transition word and you know that the first blank has to be similar to resist change. Covet means to desire greatly and aver means to assert, so eschew is the correct choice. The next two blanks have to work together. If the adherence is strong, then the teachers will be stubborn, and if it is weak, then the teachers will be uncertain. The transition word Until makes it clear that the teachers are preventing changes. Therefore, you need the first situation given above, which would lead to dogged and obstinate. Inept means unskilled, and is not a match. Partisan may seem plausible for the second blank, but then the teachers would be biased, for which there is no available synonym for the third blank. Sagacious means shrewd and superfluous means unnecessary, and thus neither one fits the meaning of the third blank.