It ( has been ) three hours since we ( arrived ) here.
We (arrived ) here three hours (ago ).He has been a Party member for 10 years.同义句It()10 years ()he joined the Party.has beensince
It ( ) three hours since we ( ) here.We ( ) here three hours ( ).
It ( ) three hours since we ( ) here.We ( ) here three hours ( ).
英语人气：507 ℃时间：2020-03-24 07:41:14
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