What’s wrong with Mia lately? She’s been so moody. She’s laughing one minute and crying the next. Mia's recent change in behavior, characterized by frequent changes in mood, indicates that she has been feeling moody. Moodiness refers to a state of being unpredictable in emotions, where a person experiences rapidly shifting emotions. In this case, Mia's laughing one minute and crying the next indicate that she is experiencing a range of emotions that may be difficult to control or understand. Can I borrow your ruler? I left mine at home. The word "borrow" is used in the sentence to express the speaker's request to temporarily use someone else's ruler. Borrowing means taking something with the intention of returning it later. In this case, the speaker wants to borrow a ruler that belongs to someone else because they left their own ruler at home. Extreme sports is his passion. He’s been into sports since he was a child. The word "passion" is used in the sentence to describe someone's strong interest or enthusiasm for extreme sports. It indicates that the person has a deep love and dedication for participating in extreme sports activities. In this case, the person has been engaged in extreme sports since childhood, suggesting that it has become a significant part of their life. Parents have to dig deep into their pockets these days because teenagers want the latest gadgets. The phrase "dig deep into their pockets" is used figuratively in the sentence to describe the financial burden that parents face when their teenagers desire the latest gadgets. It implies that parents have to spend a significant amount of money in order to fulfill their teenagers' desires. This expression suggests that purchasing the latest gadgets can be costly. Why are you so selfish? You only think about yourself and never support me! The word "selfish" is used in the sentence to criticize someone for their behavior of only thinking about themselves and not showing support for others. Being selfish means putting one's own interests and needs above others, and not taking into consideration the feelings or needs of others. In this case, the speaker is expressing their frustration with the person's lack of support and concern for others. These jeans are quite affordable. Should I buy them? The word "affordable" is used in the sentence to describe the price of the jeans. It indicates that the jeans are reasonably priced and within the buyer's budget. In this case, the speaker is considering purchasing the jeans because they are affordable, suggesting that the price is a determining factor in their decision-making process.