The word “for”, in “for warmth and light bring ecological renewal to what is now an icy desert” (l.16-17), is used to introduce

In “who call themselves” (l.1), “who” is

The word “But” (l.5) is

The noun “illiteracy” in “the cycle of illiteracy” (l.6-7)

The verb form “written” in “written in simple, conversational prose” (l.8-9) is in the

In the sentence “The rainbow troops must constantly defend their extremely poor school against plans to close it” (R.15-16), the modal verb “must” expresses

In the clause “When I first met my friend Carol” (l.1), the verbal form is in the

If the clause “she was the luckiest woman alive” (l.2) had been used in the simple present tense, the verbal form “was” should be replaced by

In the clause ‘the greatest guy you could meet’ (l.4), the modal verb “could” expresses

The clauses in “places she’s been or people she’s met” (l.5) are in the