A. What are the things that you want to do, but you can't?

->I want to cook. But  I don't know how to cook.=> This sentence is okay. This is another way of saying it.

=>I want to cook. But I don't know anything about cooking. 

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-나를 도와줄 수 있니?

->Can you help me? (Correct)

-물론 이예요.

-> Sure,  I can.  (Correct)​

-고맙다.

-> Thanks  (Correct)​