John's mother used to be very _____ about what she wore,although her family was not that rich.
They put forward a lot of plans at the meeting, none of _______ carried out in their work.
He told me that he had two girl-friends, and neither of _______ knew anything about the other.
He told me that he had two girl-friends, neither of _______ knew anything about the other.
He asked a lot of questions, and none of ______ was easy to answer.
He asked a lot of questions, none of ______ was easy to answer.