第1个回答 2012-06-17
It is the biggest apple that I have see.
第2个回答 2012-06-17
It‘s the biggest apple I have ever seen.
第3个回答 2012-06-17
This is the biggest apple I have ever see.
或者
I have never seen a bigger apple than this one.
第4个回答 2012-06-17
It‘s the biggest apple I have ever seen.
第5个回答 2012-06-17
It is the biggest apple that I have seen.