Explanation:
To solve this question, we need to choose the correct conjunction that fits the given sentence, "I wanted to buy a newspaper __________ didn't have enough money." Let's analyze the options:
A: And
- The conjunction "and" is used to connect two similar ideas or actions. It does not make sense to use "and" in this sentence because it does not provide a logical connection between wanting to buy a newspaper and not having enough money.
B: But
- The conjunction "but" is used to introduce a contrasting or opposing idea. In this sentence, "but" is the correct conjunction because it shows the contrast between the desire to buy a newspaper and the lack of funds.
C: Or
- The conjunction "or" is used to present alternatives or choices. It does not fit in this sentence because there is no alternative or choice being discussed.
D: So
- The conjunction "so" is used to indicate a consequence or result. It does not fit in this sentence because it does not indicate a cause-and-effect relationship between wanting to buy a newspaper and not having enough money.
Therefore, the correct answer is b. But, as it provides the appropriate contrast between the desire to buy a newspaper and the lack of funds.

Understanding the Correct Answer: "But"
In the sentence, "I wanted to buy a newspaper __________ didn't have enough money," the correct option is "But." Here's a detailed explanation:
1. Analyzing the Sentence
- The sentence expresses two contrasting ideas:
- The desire to buy a newspaper.
- The lack of money to do so.
2. The Role of Conjunctions
- Conjunctions connect phrases or clauses.
- "And," "But," "Or," and "So" are common conjunctions, but they serve different purposes.
3. Why "But" is Correct
- "But" introduces a contrast:
- It shows that although there was a desire (wanting to buy), there was also an obstacle (not having enough money).
- This contrast is essential to convey the complete thought.
4. Why Other Options Don't Fit
- "And":
- Suggests addition, making the sentence imply both wanting to buy and not having money as similar ideas, which doesn't convey the intended contrast.
- "Or":
- Implies a choice between two options, which is not applicable here since the speaker is expressing a lack of ability to act on their desire.
- "So":
- Indicates a cause-and-effect relationship. It would suggest that wanting to buy led to not having enough money, which is incorrect in this context.
Conclusion
In summary, "But" effectively communicates the contrast between the desire to buy a newspaper and the inability to do so due to insufficient funds. This understanding helps clarify the relationship between the two ideas in the sentence.