Как можно ! use the past simple or the past continuos instead of the infinitives in brackets.through the open door(to come)to voice of his father.and soon she(to laugh)when he (to tell)her about some funny things.and i (to go) softly into the room.she (to sit) by the fire.she (to weep),her whole body( to tremble).i (to write) a letter when you (to enter)the room.we (to do) our room when our neighbour to (knock)at the door.he (to write)his report when the bell (to ring) and his friend (to enter)the room.he(to play) football when the ball (to hit) his head.it (to grow) dark,so we (to decide) to return.kate( to dance),but when she (to see) a newcomer she (to stop).he (to clean) the car when the phone (to ring),so he(not to answer)it.she(to look )tired.she (to type)letters all morning.