第1个回答 2008-04-29
My biggest weakness is lacking of self-confidence
第2个回答 2008-04-29
my major problem is the lack of confidence in myself.
第3个回答 2008-04-29
The lack of self-confidence is the most serious weakness(或用problem) of mine.
第4个回答 2008-04-29
The biggest problem of me is no confident.