They're sure that they'll win next time.(改为同义句）They're ___ ___ win next time.那两个空怎么填
问题描述：
They're sure that they'll win next time.(改为同义句）They're ___ ___ win next time.那两个空怎么填
注意是改为同义句,
帮我说明一下那两个空为什么要这样填.
答
sure to
be sure that=be sure to