You need an objective pronoun here, and the only such pronoun is <em>us. </em>All of the other pronouns are subject pronouns.
The animated movie was more enjoyable to the children that to us. The correct answer is D.
A subject is the one being discussed in the sentence. In the question about, Who functions as the subject. It is the receiver of the action-- <em>left a pair of mittens on the ground. </em>The direct object is the <em>pair of mittens</em>. It's not possessive because it's not asking about ownership. <em>Park </em>is the object of the preposition.
ANSWER: A
Answer: One animal is from a dry place, while the other is from a very <em>moist</em> place. If they switched places, they wouldn't have the resources they need.