The correct use of comparative is found in the following sentence:
<span>D. George has a bigger appetite than Harry.
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Below, I will correct the other sentences:
A. This is the worst picture I've ever seen.
B. Alicia is a better swimmer than Marilynn.
<span>C. Of the three girls, Janet is the best speaker.</span>
The sentence that contains a predicate adjective is the fourth one: "The weather today seems very <u>humid</u> to me".
<u>A predicate adjective is an adjective that comes after a linking verb</u>, that is, a verb that connects a subject to its predicate.<u> In this sentence, the linking verb </u><u>"seems"</u><u> is connecting the subject to a predicate adjective (</u><u>"humid"</u><u>)</u>. Therefore, this adjective is modifying the subject of the sentence ("The weather today"). Predicate adjectives are opposite to attributive adjectives, which come before the verb and also before the noun that they are modifying.
<span>He is trying to say that there is something to be feared from people who keep silent despite bad circumstances because it shows that they are plotting something. There is nothing to be feared from a fool who exposes their thoughts and emotions.</span>
A scientific article on the benefits of community service is the correct answer :) All the others are irrelevant or too old.