¿tú comes mucho helado? - no mucho, pero sí como cuando quiero. a. me c. lo b. te d. la

The answer would be C. lo.
No mucho, pero si lo como cuando quiero.
Not much, but yes I eat it when I want.

It would not be me because the phrase "me como cuando quiero" would mean "I eat myself when I want"

It would not be te because the phrase "Te como cuando quiero" would mean "I eat you when I want" it also has inappropriate meaning.

It would also not be la because when you say "it" you are referring to helado. Helado is a masculine word, so you would use lo, a masculine pronoun in the sentence.

I hope this helps!

Ithink its b) built underground reservoirs

I'm not sure if you mean for us to translate or to answer. but i'll translate as these are questions for you to answer. 1. how long has it been since you've read a book? . 2. how long has it been since you've eaten breakfast? . 3. how long has it been since you've talked with your spanish professor?