作业帮He__________has been a Party menber for 15 years.(同义句转换） ___15 yers since he____the party.
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He__________has been a Party menber for 15 years.(同义句转换） ___15 yers since he____the party.
He__________has been a Party menber for 15 years.(同义句转换） ___15 yers since he____the party.
He__________has been a Party menber for 15 years.(同义句转换） ___15 yers since he____the party.
It has been; joined
For 15 years since he had been in th party.
更正楼上错误，正确答案如下：
= (It is) 15 years since he (joined) the Party.
如果前面是三空，才是：
= (It has been) 15 years since he (joined) the Party.
如果对你有所帮助，请点击我回答下面的“选为满意回答”按钮，谢谢！
He__________has been a Party menber for 15 years.(同义句转换） ___15 yers since he____the party.
has been
have been
have been
have been
have been
Been away
been是什么意思
been是什么意思
been是什么意思?
been是什么意思?
had been
always been 还是been always?
have been / has been / had been 的区别
has been / have been /had been …………
英语中have been；has been是什么?
has been doing have been done区别
have been还是have been being?