having finished answering questions, you should check that the questioner is satisfied or further elaboration or explanation is called for. the following expressions might be helpful.
did i answer your question?
did i answer you satisfactorily?
did your question get answered?
i don't know whether this answered your question.
i don't know if this is a satisfactory answer.
i hope this may serve as an answer to dr. li.
i hope this answers ~0ur question.:,
sometimes when question lime is over and ff time permits, you can restate, your main proposition, including any good comments from the audience and ignoring adver