I have joined the singing group for four terms有没有错?错了,改正

I have joined the club since three years ago I have joined in the dance club這句話對嗎?如题 I have joined the school football team.(改为同义句）把have joined 改为另两个单词 Four years()since I ()the army 求分析为什么是 has passed joined而不是 passed have joined I have joined the Part for 3years .I have been a member of the Part for 3years那个对.为什么I have joined the Part for 3yearsI have been a member of the Part for 3years I have joined the school football team.(改为同义句） I have joined the singing group for four terms有没有错?错了,改正 I have joined the youth volunteers for five years.这句话对吗? I ( ) the league for five years A joined B.have joined C.have been in D.join((要解释）） I have joined the school football team.(同义句转换) I 'm ____ ____ of the school football team. I think I have ______my speaking skills since I joined the club空格里应该填什么? I joined the army five years ago.改为同义句 I have ___ a solider ____ five years. I have just joined the Desktopdoodle network.I wish to invite you to Desktopdoodle as well.什么意 If I (had know) how to sing the song,I would have joined you that day.为什么不是knew I have finished my homework for two hours/I have joined the army since 2005/I have arrived in London for two days.哪里错了,请告知, I have joined the english club at school (用一般疑问句)_____ you _____ the english club at school It is three years since I joined the army.改成完成时态 IIt is three years since I joined the army.改成完成时态I have ＿ ＿ the army for three years. It is three years since he joined the army.为什么是用joined而不是用have joined