Correct Answer: B

Rationale: The word 'hear' is misspelled; it should be 'here.' In the context of the sentence provided, 'hear' does not fit logically and should be replaced with 'here' to convey the intended meaning. 'Climate,' 'inappropriate,' and 'skiing' are all spelled correctly and are appropriate in the context of the sentence. 'Hear' is a homophone and does not make sense in this context.

Correct Answer: D

Rationale: 'Have to' is the correct choice as it fits the sentence structure. The sentence is in the past tense ('did we') and requires the infinitive form 'have to' to express the idea of necessity or obligation in the past. 'Has to' (Choice A) is incorrect as it is present tense, 'haven't' (Choice B) is a negative form and does not make sense in this context, and 'had to' (Choice C) would imply a past obligation that has already been fulfilled, which is not the intended meaning here.

Correct Answer: A

Rationale: In this sentence, the correct choice is 'swam,' which is the past tense of 'swim.' Therefore, 'swam' correctly completes the sentence: 'Theo was in great shape; he swam all the way back to the pier.' 'Swimmed' is not a valid past tense form of 'swim,' 'swum' is the past participle form and doesn't fit the context, and 'swim' is the base form of the verb and is not suitable in this case.

Correct Answer: C

Rationale: In this sentence, 'us' is the correct pronoun to use. The sentence should read, 'Is the new student coming out to lunch with us?' 'Us' is the objective pronoun that functions as the object of the preposition 'with.' Choice A, 'we,' is incorrect because 'we' is a subject pronoun and does not fit the prepositional phrase 'with us.' Choice B, 'our,' is a possessive pronoun, which is also incorrect in this context. Choice D, 'they,' is a subject pronoun and does not agree with the preposition 'with.' Therefore, the correct answer is 'C: us.'

Correct Answer: B

Rationale: 'But' is the conjunction in this sentence. A conjunction is a word that connects clauses or sentences. In this case, 'but' links two contrasting ideas: the little girl wanting a cookie and her decision not to take one. The other options are not conjunctions; 'little' is an adjective, 'take' is a verb, and 'the' is a definite article.