A. Remain silent
B. Remain mute
C. Remain serious
D. Remain calm
🧠 Explanation:
“Keep a straight face” means to remain serious, hiding emotions. For English students, this highlights idioms, making it a key topic for studying linguistic expressions, communication, and cultural phrases. Idioms convey behavior. Understanding this ensures expressive clarity. It’s essential for mastering idioms in communication. Studying this idiom offers insights into how language depicts control, crucial for English, journalism, and communication.
