When you have to deal with a 3 blanks questions , more often than not, it is difficult. However, it also has a lot of clues to solve in a fairly amount of time.

Doing so, first read the entire sentence from the head down and if necessary, scramble it to see any possible hint. I.E: reassemble it in a cogent way to lead you to the fastest solution possible.

I am assuming that NOT all words in the possible blanks I do know. And this is true also for me. Nonetheless, with logic you can reach the right solution.

The advent of technology in the classroom has presented educators with (i) _______ . While such advances offer (ii) _______benefits, both educational and social, the difficulties also cannot be ignored.

As you can see the advent of new technology brings us positive sides and negative sides. As such, the first blank is out of scope. The third is too extreme and from the context of the sentence a bit must the first one.

Whilst such advantages are undeniable, the negative sides cannot be ignored. So the second blank must be pervasive because the benefits widespread across our entire daily life.

While some policies (iii) _______because they focus exclusively on the benefits or exclusively on the difficulties, no policy is ideal.

Some policies are good, focusing only on the positive sides, others focus on the negative sides. Therefore, every policy is perfect. From this, we can infer that there is an ongoing debate.

Imprudent is out of scope and common ground is not achieved, at least at the moment. (I) must be the third blank.

Hope this helps.

Regards