英文文法-動詞時態-On-line English線上免費英文資源
與一般過去式相關的狀語 yesterday (morning), a month ago, earlier this month, last week/month/year/ Monday, the other day (前幾天), at that time, in 1979, etc. 與現在完成式相關的狀語 since Monday, so far, ever, never, up to now/ present, yet, for three ......