---how long have you______?---Since five years ago.A.joined the army B.lived in the town C.become a midfield player D.bought the MP3

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---howlonghaveyou______?---Sincefiveyearsago.A.joinedthearmyB.livedinthetownC.becomeamidfieldplayerD

---how long have you______?---Since five years ago.A.joined the army B.lived in the town C.become a midfield player D.bought the MP3
---how long have you______?---Since five years ago.
A.joined the army B.lived in the town C.become a midfield player D.bought the MP3

---how long have you______?---Since five years ago.A.joined the army B.lived in the town C.become a midfield player D.bought the MP3
B 其余都是瞬间动作,如果你想选C,那么它应该是how long have you been a midfield playeer

B
现在完成时

B,这里应该要一个持续的动作或状态，从过去一直到现在，ACD都是瞬间动作

B
其他三个都是瞬间动词，不跟表示一段时间的时间状语连用
希望对你有帮助

选择B，你在这镇上生活了几年？-从五年前开始

选B.其它三个动词都是短暂性动词，不能构成现在完成时；只有live是延续性动词，可以构成现在完成时。

how long表示后面必须要加一个持续性的动词，而join参加、become变成、buy买都表示瞬间的一个动作，只有B是符合选项的，你在这里住了多久。

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