✔ Correct Answer: D. The garbage was first sun-dried for one to three days to bring down the moisture level

The correct answer to the question “They fist sun-dried the garbage for one to three days to bring down the moisture level.” is The garbage was first sun-dried for one to three days to bring down the moisture level. This question belongs to Active/Passive Voice in English. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.