舞蹈团的日常排练持续三个小时。
The dance troupe's daily ___rehearsal lasts three hours.
首演前最后的彩排总是很紧张。
The final ___rehearsal before the opening night is always intense.
她在考试前默默把重要公式在脑海里过了一遍。
She did a silent ___rehearsal of the key formulas before the exam.