To solve this problem you obviously need to know the definition of the word "jubilant." "Jubilant" means very happy and overjoyed. So, which of these answers is a reason why children might most likely be very happy? The correct answer, of course, is because " . . . it is a snow day."

To solve this problem you simply need to figure out which one of these answer choices best represents a reason why food might "spoil" or be ruined. The correct answer is therefore " . . . the fridge was left ajar." If it helps "ajar" means partially open.

To solve this problem you first need to know that "massive" means very large, gigantic. So, which of these answer choices fits with the description of something as "massive"? The correct answer is " . . . towered above the houses." If you "tower above" something you are much taller than it.

To solve this problem you simply need to figure out which of these answer choices would most likely be related to a very cold house. The correct answer is "The heater is broken . . . " All the other answer choices would either require a negating conjunction like "but" or "yet" or else don't make sense in context.

To solve this problem you need to determine why the subjects of this sentence would be unable to get any bread. The most likely answer is because "The bakery is closed . . . " Some of these answer choices might seem right at first glance, but contain incorrect pronouns. Such as "They have no money . . . " If "they" was replaced with "we" this answer would make sense. You need to always be aware of pronoun continuation in sentence completion problems.

To solve this problem you need to be careful of incorrect conjunctions like "yet" and also consider what the speaker would most likely say after commenting that her house is "falling down." The correct answer is therefore " . . . it needs renovation." "Renovation" is the action of repairing an old or broken building and making it like new. 

To solve this problem you first need to know that "scolding" means very hot, burning. So, if the water was very hot it makes sense that the subject would " . . . [wait] for it to cool down."

Although all of these answers make sense grammatically, only one of these answer makes sense contextually. That is the answer choice that reads " . . . made mistakes often." To solve this problem you needed to know that "careless" means not careful, likely to make mistakes.

If the subject was trying to "lighten the mood" (make things seem less serious, cheer people up) then it makes sense that he would do so " . . . by cracking jokes."

To solve this problem you simply need to determine which one of these answer choices represents a situation that might cause people to light candles. The correct answer is therefore "The power went out . . . " Additionally, "illuminated" means lit up; "scorching" means very hot, burning.