I _____ (real)don't know how to spell the word.

I _____ (real)don't know how to spell the word.
I _____ (real)don't know how to spell the word.

I _____ (real)don't know how to spell the word.
这个时候really是一个副词!不能用形容词!这个已经是一个句子了!用副词来修饰、