Transmission? 2009 Honda Civic Hybrid?

My car does not move while on Drive gear. Ok so the mechanic checked my car yesterday and he said it was the transmission. How can I know if it really is the transmission or he's just telling me that to rip me off? He had the car on the jack yesterday and I could see the wheels spinning. Do the wheels still spin if the axle is broken? What can be the failure on my car?

The failure is that you will never believe anyone your whole life I feel sorry for you.

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