在做英语笔试时,怎么判断一个句子该用什么时态?有哪些标志词?答:有tomorrow,next week,next year之类的用一般将来时 有yesterday,last week,last year之类的用一般过去时 有always,usually,often,sometimes,every week (day,year,month…),once a week,on Sundays用一般现在时 有now,at this time,days,etc. look . listen用现在进行时 有already,before,ever,...