Add the appropriate question tag to the given sentence:
Please close the door behind you, _______

we know that a matter tag is an interrogative phrase added to a sentence for emphasis. It should use the auxiliary verb form with relevance the tense of the sentence. We also know that if the sentence is affirmative, the tag should be negative and if the sentence is negative then the tag should be positive. We observe that the given sentence indicates an action that must occur within the near future. We also observe that the given sentence is affirmative in nature. Hence, we will infer that the question tag should be negative and have an auxiliary verb of the longer term form.
- ‘Would you?’is not a negative question tag and would is an auxiliary verb wont to indicate past. Hence, option A isn't the proper answer
- ‘Haven’t you?’ could be a negative question tag but has is an auxiliary verb accustomed indicate present. Hence, option B isn't the right answer.
- ‘Won’t you?’ could be a negative question tag and can is an auxiliary verb accustomed indicate tense. Hence, option C is possibly the proper answer.
- ‘Shall you?’ isn't a negative question tag while shall indicates tense. Hence, option D isn't the proper answer.
> Thus, we will conclude that option C is that the correct answer.