日本語をクリックすると英文が表示されます。まずは自分で英語にしてから答え合わせを。
Do you know where I can buy it?
I'm not sure if this is right.
Do you know where the meeting is?
I'm not sure if he's coming.
Do you know whose this is?
I'm not sure if we'll make it in time.
Do you know why it's delayed?
I'm not sure if that's okay.
Do you know how to get there?
I'm not sure which one is better.
Do you know who's in charge?
I'm not sure if I understood correctly.