问一段存储过程

[笨马克]

从表中获取这样得记录：replyID=0 and userID=u.userID and close_up=0 并且三个字段scopes、type和product中的int型数据要包含在字符串@expert_attribute（传过来的参数，是一串类似"78,20,3,56,"的字符串）中。

我写的是这样的：
CREATE PROCEDURE receivequestion
(
@userID int=0,
@expert_attribute varchar(2000)=''
)
AS
Begin
create table #temp(questionid int,userid int,username varchar(20),title varchar(50),feedbacks int,addtime char(10))
if (select usertype from user_base where userID=@userID)=2
Execute('insert into #temp(questionID,userid,username,title,addtime) select v.questionID,v.userid,u.username,v.title,convert(char(10),v.addtime,120) from vipquestion v,user_base u where v.replyID=0 and v.userID=u.userID and v.close_up=0 and v.scopes in ('+@expert_attribute+') and v.product in ('+@expert_attribute+') and v.type in ('+@expert_attribute+')')
update #temp set feedbacks=v.feedbacks from #temp r,(select replyID,feedbacks=count(replyID) from vipquestion where replyID in (select questionID from #temp) group by replyID ) v where r.questionID=v.replyID

End
select * from #temp order by questionid desc
GO

报错是：
服务器: 消息 170，级别 15，状态 1，行 1
第 1 行: ')' 附近有语法错误。

请问错在什么地方？应该怎么改？
谢谢