延续性动词与非延续性动词的区分及其转换附练习和答案内容摘要：
died. Four years has passed since the old man died. He joined the Party 2 years ago. He has been in the Party for 2 years. I bought the book 5 days ago. I have had the book for 5 days. 补充练习： 1. When he arrived at the bus stop, the bus ________ for 20 minutes. A. has left B. had left C. has been away D. had been away 2. I ______ the League for 5 years so far. A. joined B. have joined C. have been in 3. The factory ________ since the February of 1988. A . has been open B. has opened C. was open D. opened 4. Mary and Rose _______friends since they met in 2020. A. have made B. have been C. made D. have bee mustn39。 t ________ until he es back.。阅读剩余 0%
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