Oct.1st, _________is our National Day, is always celebrated with singing and dancig.
Jim went to answer the phone. ___________, Harry started to prepare lunch.
Mary and I see each other ___________. but not as often as we used to.
Father ____________ goes to the gym with us although he dislikes going there.
Gun control is a subject ___________ Americans have argued for a long time.
He ___________ his friends for their help at the hotel now.