－－I'm sorry.That wasn't of much help.－－Oh,＿＿＿.As a matter of fact,it was most help.两个...－－I'm sorry.That wasn't of much help.－－Oh,＿＿＿.As a matter of fact,it was most help.1 第一句中of是怎么回事?2 第二句中

－－I'm sorry.That wasn't of much help.－－Oh,＿＿＿.As a matter of fact,it was most help.两个...－－I'm sorry.That wasn't of much help.－－Oh,＿＿＿.As a matter of fact,it was most help.1 第一句中of是怎么回事?2 第二句中
－－I'm sorry.That wasn't of much help.－－Oh,＿＿＿.As a matter of fact,it was most help.两个...
－－I'm sorry.That wasn't of much help.－－Oh,＿＿＿.As a matter of fact,it was most help.1 第一句中of是怎么回事?2 第二句中为什么要填sure it was,而不填thanks anyway?

－－I'm sorry.That wasn't of much help.－－Oh,＿＿＿.As a matter of fact,it was most help.两个...－－I'm sorry.That wasn't of much help.－－Oh,＿＿＿.As a matter of fact,it was most help.1 第一句中of是怎么回事?2 第二句中
1 of much help 没多大帮助 of+名词 相当于形容词
2 sure it was,其实是回答前面反义疑问句,（只是没写出来罢了）
thanks anyway,虽然没帮上忙,但还是表示感谢.前后看不出来,有这个意思,所以不用.