■間接疑問文
[問1]Who is that man? I know it.(1文に)

[答1]I know who that man is.

[問2]What did she do ? Do you know it ?(1文に)

[答2]Do you know what she did ?

[問3]What will happen ? No one knows that.(1文に)

[答3]No one knows what will happen.

[問4]Where did she come from ? I know. (1文に)

[答4]I know where she came from.