To solve this problem you have to think of a reason why the speaker would wrap something in a blanket. The correct answer is therefore "My dog was very cold . . . " You know that it must be a "something" rather than a "someone" because of the use of the pronoun "it." People are "he," "she," or "they." Animals and things are "it." 

To solve this problem you need to consider which of these answer choices most likely relates to something being very old. You also have to consider that the pronoun used is "it." This means the answer choice cannot relate to a man, a woman, or a lawyer. Otherwise the pronoun used would be "he," "she," or "they." The correct answer is therefore "The car was very cheap . . . " Additionally, "expensive" means costing a lot of money, not cheap; "praiseworthy" means deserving of praise, laudable. 

To solve this problem you need to determine which of these answer choices best represents an action the speaker might take in reaction to losing their keys. The correct answer is therefore " . . . I had to replace them." The answer choice " . . . I had already found them" does not make sense contextually. 

To solve this problem you need to determine which of these answer choices best represents a reason why someone's family might celebrate. The correct answer then is "After she was found innocent . . . " The other answer choices are either less logical or else contain inappropriate conjunctions like "even though" and "despite." 

To solve this problem you need to consider the meaning of the conjunction "despite." "Despite" is a difficult word to define, but it means something like not being affected by. So, in the context of this sentence something was able to happen without being affected by the bad weather. Of these answer choices, only the landing of a plane could possibly be affected by bad weather so this is the correct answer. Because "despite" is such a difficult word to understand let us look at a couple more examples: "Despite feeling sick, he went to school"; "I stayed up all night, despite being exhausted." 

To solve this problem you need to consider the use of the word "but." Also you are told that whatever it is that the speaker enjoys is unhealthy. The word "but" is used to change the meaning of a sentence to reveal an opposite idea. The correct answer is therefore "I love cheeseburgers . . . " The speaker loves to eat cheeseburgers, but cannot enjoy them too often. Additionally, "spoil" means ruin, go off; "energetic" means full of energy; "wandered" means walked without purpose, walked slowly or casually.

The key to solving this problem is the word "before." The correct answer must reflect something that someone would logically do before going on a trip. "Before" means something like earlier than, prior, in preparation for. So, the correct answer is " . . . he packed his suitcase." The other answer choices are either nonsensical or reflect something someone might do "after" a trip.

You will notice that the answer choices here are all very similar. They differ in the conjunction used and whether or not they are positive. The conjunctions "yet," "however," and "although" are all incorrect because they are used to change the meaning of a sentence, not continue the meaning of the sentence. The correct answer is the one that contains the word "nor." "Nor" is used in place of "or" when you want to continue a negative statement. So,  for example, "I do not like chips, nor do I like french fries." 

You will notice again here that the answer choices are all very similar. They only really differ in the conjunction used. You can eliminate "even if" because it does not make sense in this context. If the correct answer was "even if" the sentence would have to read "It is possible to achieve anything even if you do not work hard enough." "Despite," "however," and "in spite of" can be eliminated for the same reason. So, the correct answer is " . . . if you work hard enough."

To solve this problem you need to consider the meaning of the word "although." It is a hard word to define, but it means something like even though this first thing is true, this second and opposite thing is also true. So, even though the author has three dogs they " . . . actually prefer cats." The other answer choices are illogical or would only make sense without the word "although."