Question

【题目】The students had to keep sduring the exam. No one was allowed to talk.

Answer 1

【答案】ilent
【解析】句意：学生们考试时必须保持沉默。不许任何人讲话。短语Keep silent：保持沉默，保持安静；结合句意、语境和首字母提示可知答案为silent。