Explain why: a) the Bishop couldn't understand that itwas not Robin.b) the Bishop's soldiers didn't fight withRobin's men.c) everybody knelt together for the Mass.​

12.1 The population of this town (was) about 20,000 five years ago. Every year it (is increasing) more than 1,000 a year. By the end of next decade it (will have doubled).
12.2 They have just (come) back. I think, it (has taken) them a half an hour, not more. Now they (are speaking) to my mother.
12.3 Tornadoes (speed) through the island every year. By the end of this season they (will have damaged) many buildings and (injured) many people.
12.4 Her husband (has been watching) football on TV since breakfast. But it seems, the match (is not going) successfully, you (should not ask) anything about the game.
12.5 The concert (was) almost over, and the singers (were) tired, but the spectators were still ( waiting) for new songs. You see, it (will be repeated) again tomorrow.