第1个回答 2011-11-01
I wanna know if it's appropriate to do so.
第2个回答 2011-11-01
I wonder if it's appropriate to do so.
第3个回答 2011-11-01
I want to know if it is appropriate
第4个回答 2011-11-01
I wonder if it is suitable (ok,fine 比较口语) to do so.
第5个回答 2011-11-01
I want to know whether it's right