The sentence is grammatically incorrect.
Answer: The problem with this sentence is the words "if" and "decide."
It should read "The mechanic told me I would have to choose whether
I wanted to have the carburetor fixed or I wanted a new car," or "
.. choose between having.... or buying a new car."
Explanation:
2.El actor esta en el escenario
3.La Ciudad de Mexico es grande
4.Voy a la tienda porque necesito ropa nueva
6.Los carros van por la carretera
5.la oficina esta en un edificio grande
Dinero / money
................