For question 4, the answer is False. An argument doesn't necessarily have to state "I think," "I believe," or "I know" to be believable. In fact, arguments that are based on facts, evidence, and logical reasoning are more convincing than those that rely solely on the speaker's personal beliefs or opinions. However, it's important for the speaker to acknowledge any biases or limitations in their argument and to present counterarguments to strengthen their position.
For question 5, the answer is False. Not all facts in a text necessarily support the claim. Some facts may be irrelevant or even contradictory to the claim being made. It's important to evaluate the credibility and relevance of each fact and how it contributes to the overall argument. A strong argument should use facts selectively and present them in a way that supports the claim being made.