【正文】
sent out had gone into had found out showed up 。 1. Past perfect Tense 過去完成時 構(gòu)成: had+ 過去分詞 6:00 7:00 現(xiàn)在 By the time I got up, my sister had already washed all the clothes. By the time I got outside, the bus had already left. The differences between Present Perfect tense and Past Perfect tense. (1) She has taught English for 6 years. (2) “Where is Susan” “She has gone to Ameri