英语动词的不同时态可以表达动作发生的时间。
Different ___tenses in English verbs show when the action happens.
在等待结果时,她的肌肉不由自主地绷紧了。
Her muscles ___tensed up involuntarily while waiting for the results.
面试前他变得很紧张。
He ___tensed up before the job interview.