Question

Fill in the blank with the most appropriate word.
A: Water the plants, please.
B: ____________.

• A. Yes, I did
• B. They were watered
• C. They've already been watered
• D. No, not yet.

Answer 1

Answer: (C)

Since the question is about an activity that continued in recent past to the present and refers to something not present in the conversation, present perfect continuous tense in third person singular must be used. Hence, Option C is correct.The rest of the options do not adhere to this rule, hence incorrect.