Well we use today systems and back then systems
I believe the answer is A. This is because the sentence is supposed to be parallel and all of the verbs(except for hiss) have to be past tense.
Dam, goldie. This is good! I wish I could write poetry like this! It's so deep. This is honestly incredible.
Answer:
Even though recycled water is accepted for uses like irrigation, recycling toilet water to tap water may make people feel reluctant and disgusted about the idea of drinking it.
Besides, the phrase "toilet to tap" may reduce the strength of the advantages of recycling water. The reason is people may make prejudices based on their feelings about the dangers of drinking recycled toilet water.
