While i was reading i heard someone____at the door of partie

Just at that time,I heard someone____at the door someone____at the door while Tom was having his supper. WHEN I WAS READING I HEARD SOMEONE -----(KNOCK)AT THE DOOR while he was reading the letter,he heard a knock at the door As I was about to step out of the door,I heard a weak voice- i was watching tv when i heard the door(knocking) I heard someone __ for help while I was reading a novel at h I was reading the newspaper___I heard a loud shout outside I nearly was dead when I heard of the bad i was about to go to bed()I heard a knock at the door When I was watching TV,I heard someone _______ the door. When I was watching TV,I heard someone _______ the door.A)lo