1. Those
Demonstrative adjectives are adjectives that modify nouns or pronouns by pointing or indicating if they are near or far in distance or time. <u><em>Those</em></u> is a demonstrative adjective because it modifies the noun "shoes" by indicating some shoes that are far in distance.
2. Subordinating
Subordinating conjunctions are conjunctions that introduce a subordinating (or dependent) clause, and that join dependent clauses to independent clauses. There are many subordinating conjunctions, one of them is <u><em>in order that</em></u>. In the sentence, this conjunction helps to make a transition between an independent clause (the judge listened to the explanation) and a dependent one (in order that he might decide fairly.), and it also serves to introduce the latter.
3. The word “very” is an adverb describing to what extent.
In the sentence, <em><u>very</u></em> does not act as an adjective because it is not describing a noun, instead, it acts as an adverb because it modifies an adjective: <em>beautiful</em> by describing to what extent or degree the coral reef was beautiful.