In the text,

the phrase “They can be used as warmers” (l.12) is the passive voice of You can use them as warmers.

In the text,

the word “filler” (l.13) is a noun formed from the verb to fill.

In the text,

the phrase “at the end” (l.13) is synonymous with in the end.

In the text,

the use of “will”, in “each student will have” (l.32), shows agreement.

In the text,

the relative pronouns which and that can be used after the word “topic” (l.43) without changing the meaning of the sentence.

In the text,

“thinking” (l.45) is in the -ing form because it comes after a preposition.

In the text,

the verb “Beware” (l.45) implies a warning.

Judge the following items based on the previous text.

The words “one” and “ room”, separated by a hyphen (R.1), function as an adjective.

Judge the following items based on the previous text.

The verb “were” (l.2) would convey the same idea if it were replaced by had been.

Judge the following items based on the previous text.

The suffix “-ward”, in “westward” (l.3), means in a particular direction.