Select the correct answer. Which word best completes this rule? botar basura en las calles. A. Nadie B. Alguien C. Ni D. Todos

C. No; the answer would say “No botar basura en las calles” which makes is take more sense.

Cusco is the oldest city 

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?