→ erin012112:這題的重點在要用完成式,意思說昨天應該本來會來但沒有 10/12 19:43
推 NCKU:應該做而未做should have+pp 固定用法 10/12 19:44
→ akyrashi:should have pp 表示當時應該要怎麼樣，可是卻沒有那樣做 10/12 19:45
推 sssn1:與過去事實相反的用法嘍 10/12 21:36
推 wolflogin:關鍵在yesterday,因為語氣上敘述的是昨天"已經"發生的 10/12 22:33
→ wolflogin:事，故用完成式 10/12 22:33
推 q1237926:猜測性動詞 表示過去應該做 卻沒有做 10/12 23:02
→ NTUpope:Note that the preterite forms are not necessarily used 10/13 00:05
→ NTUpope:to refer to past time, and in some cases they are near 10/13 00:05
→ NTUpope:synonyms to the present forms. 10/13 00:06