The word "reserved" is the most suitable choice to fill in the blank because it indicates a lack of outward expression or enthusiasm. If someone becomes reserved in a conversation about a certain topic, it means they become more restrained, quiet, or less willing to openly share their thoughts or feelings. In the given context, it suggests that the person's demeanor changed to a more restrained or withdrawn state when discussing her father.

The sentence would then read: "Ram was praised for his visionary leadership."

"Visionary" in this context implies that Ram's leadership is characterized by forward-thinking, innovation, and a clear vision for the future.

The sentence would then read: "The doctor directed the nurse to administer an alternative medicine to the patient."

In this context, "alternative" suggests a different or substitute medicine than the one initially considered.

The word "make" is the most suitable choice in this context because it is commonly used with "progress." Saying "make progress" indicates the act of achieving advancement or improvement, which aligns with the idea of regularly doing something every day. The other options, such as "hold," "get," or "catch," are not commonly used in this specific phrase and do not convey the intended meaning of steadily achieving progress over time.

The correct word to fill in the blank is "scorching." The sentence is expressing that whether it's chaat or a refreshing lemonade, lemon is essential during extremely hot summers. "Scorching" is used to describe intense heat, making it the appropriate choice in this context.

"Manifest" means to display, show, or reveal something clearly. The antonym "disguise" involves concealing or hiding one's true identity or the true nature of something. So, in a short explanation, while "manifest" involves revealing, "disguise" involves concealing or hiding.

"Impetuous" describes someone who acts suddenly without thought or care, often in a rash or impulsive manner. The antonym "calm" represents a state of tranquility and composed behavior, which is the opposite of being impetuous.