I don't know how this ______(发生)
I don't know how this ______(发生)
i don't know how()(tell) you about this
i don't know how to solve this problem.
I really don't know how to read this word.
I really don't know how to explain this pnblem
How long ( ) she ( ) this dictionary?Sorry,I don't know.
I don't know how we use this computer=i don't know_____ ____
I don't know how I can swim well.(改为简单句) I don't know ______
选择:1.I don’t know _______ this film began.A.how soon B.how l
I don't know how to say this word.How is it (pronounced)?
i don't know how much longer i can keep this up.其中i can keep
Forgive me ,I don't want this…… Didn't know how to face you