单选题 The principal's ______ speech caused the students to begin whispering to each other and fidgeting in their seats.

A、 (A) minuscule
B、 (B) cognitive
C、 (C) empirical
D、 (D) gregarious
E、 (E) interminable

【正确答案】 E

【答案解析】The word interminable means "seeming to last forever;" it makes sense that the students would start to whisper and fidget if the speech seemed to go on and on.