按要求完成下列句子
【小题1】当球迷们看到贝克汉姆的时候，他们如此激动以至于大喊大叫。(根据中文意思完成句子，每空一词)
When the football fans saw Beckham, they got ___________________ excited ___________________ they cried out.
【小题2】David was so careless that he didn’t find the mistakes in his test paper. (变为简单句)
David was ___________________ careless ___________________ find the mistakes in his test paper.
【小题3】A：The boy is so young that he can’t look after himself. (改写句子，使B句与A句意思相近) 
B：The boy is not ___________________ ___________________ to look after himself.
【小题4】The stone is so heavy that I can’t lift it up. (改写句子)
It is ___________________ a heavy stone ___________________ I can’t lift it up.