____is no doubt that rockets will defeat the Washington Wizards in the next game.

问题描述:

____is no doubt that rockets will defeat the Washington Wizards in the next game.
为什么填there而不填it,(我知道不是强调句型)

there is no doubt that ...毫无疑问...
固定句型 这里doubt是名词.
你说的it is 加形容词也是一个固定用法,it作形式主语.和这个句型不一样,不要混淆.
如果想表达怀疑,可以用I’m doubtful that/whether...