You can substitute pasta for the rice, if you prefer.

Hi teachers,

You can substitute pasta for the rice, if you prefer.

Why is “the” used before “rice”?
Does it mean you can use the rice instead of pasta?

Many thanks.

“the” is used because the rice was mentioned earlier (probably in a recipe). However, it would not usually make much difference if “the” was omitted.

No, it means you can use pasta instead of rice.

Thank you very much, Dozy.