All are correct.
I'm not sure of the meaning of #7, but grammatically, it's correct.
1. Tell me where she lives.
2. He asked me how she should do.
3. He showed them how to open the bottle.
4. Do you know why he was late?
5. I don't remember when she arrived.
6. I wonder how he open the door.
7. I doubt why he didn't come here.
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Would you check the sentences? Are they all grammatical?
1 answer