A. You don't like the lecturer, do you? (Correct! This is now - in the present) B. You DON'T like the lecturer, DID YOU? (Incorrect, "Don't" is present-today "Did" is past-yesterday) But you might say: You DIDN'T like the lecturer, DID you? (now both parts are in the past) C. You DON'T like the lecturer AREN'T you? (incorrect as the parts don't match) But you might say: You ARE going to the lecture, AREN'T you? (see, the parts match) D. You DON'T like the lecturer, DON'T you? (incorrect: only use the negative once, as in A). Hope this helps, Take care, Josephine

A. You don't like the lecturer, do you?

Hi, the first one (A) is the only one that you can use as the others are incorrect. The statement ' you don't like the lecturer ' needs the affirmative form of the auxiliary verb 'do' so you have to use 'do you?' to form the question tag ' you don't like the lecturer , do you?' If the statement was affirmative 'you like the lecturer ' you would use the auxiliary 'do' in the negative form to form the question tag ' you like the lecturer, don't you?' Hope this helps :D

A is the right answer...B...it uses different verb tenses...one is "do",the other is"didn't",it's paradox...as for C...the former part of this sentence uses "do",then you shouldn't change it...and D...this kind of sentence is called"disjunctive question"and the verb should use the opposite ones