Put down questions to the following sentences. 1) They had done their homework by 8 o'clock last night. By what time had they done their homework? 2) Anna was doing morning exercises when her mother called her. What…. 3) Sheila made dinner at 7 p.m. When…. 4) Paul and Ted had played two sets by the time we arrived. How many…. 5) The children were too noisy at the theatre. Who…. 6) He had fallen asleep by midnight. By what…. 7) The boys were watching a thriller last night. What… 8) Mike was the last to arrive at the station. Who… 9) The storm had broken out by midnight. By what….