46.In an elementary English class, a teacher regularly uses classroom expressions (such as “Line up,” “Raise your hand,” “Work in pairs”…) during daily routines. What is the main rationale for this practice? (A) To increase vocabulary retention for later written tests. (B) To encourage the use of English for classroom communication. (C) To help students memorize fixed expressions more efficiently. (D) To prepare students for grammar-based written exercises.