donottalk是什么时态的标志词答:常见八种时态标志词 1. 一般现在时 n 谓语用动词原形do或第三人称单数does形式。 n 标志词有: every day, every Sunday, often, always, usually, sometimes , on Sundays,in the morning, on weekdays,once a week等等 n 2. 现在进行时am/is /are+doing形式。 n 标志词:now,at this time...
时态的结构和用法答:标志词:1、一般现在时 标志词: often, always, usually, sometimes , every week(day/year/month...), once a week,on Sundays 2、一般将来时 标志词: tomorrow, next week , after tomorrow,in+一段时间,soon,from now on 3、一般过去时 标志词:一段时间+ago,yesterday, in 1945,at that...