the following sentence contains

it is not right to make a promise unless one is sure he can fulfill the promise.
one infinitive
one gerund
one participle
no verbals

One infinitive.

Explanation:

Verbals are formed from verbs, but they act as a noun, adverb or adjective.

There are three types of verbals: infinitive, gerund, participle.

Gerund acts as a noun, participle acts as an adjective and infinitive can act as a noun, adverb or adjective.

From the previously mentioned verb forms, in this sentence, we can only find an infinitive - to make (to make a promise - infinitive phrase).

since it is asking for her reaction to elnora's trouble at school you can rule out any answers with a positive response (b). then you can rule out (d), this is because it does not show the mother's reaction but the daughter's response. that leaves you with two options (a) and (c), by looking at the options you can rule out (c) because it isn't referring back to elnora's issues at school.

moon-letters were a method of writing invented by the dwarves. moon-letters were ordinary runes, but written in such a way that they could only be read when the light of the moon shone behind the writing. some moon-letters could be read by any moonlight, but it was possible to make the writing even more secret. more sophisticated moon-letters could only be read by the light of the same shape of moon, or at the same time of year, as when they were written. hope this !