下列雙重否定句改為陳述句。     
1．這回非要親眼瞧瞧師傅的絕活不可。
                                                                                        
2．誰也不能否認(rèn)刷子李有一手絕活。 
                                                                                        
3．曹小三不得不承認(rèn)師傅的技術(shù)高。