A.Do you practice reading every day?

I practice reading 5 times a week. 

=> Corrected : The sentence is corrected grammatically. 

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B. I'm scared.

What is he holding?

=> Another way: Your sentence is okay and this is another way of saying it.

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What does he have in his hand? 

He holding skate board.

=> Corrected : The sentence is corrected grammatically and this is another way of saying it.​. 

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He has a skateboard.​