A good many houses ____ knocked down by the earthquake.

------ houses were knocked down in the earthquake. ________ the houses were knocked down in the earthquake. 单选:She was knocked down by a car and her shouts ____ the att 求求英语达人,帮帮忙解题（单选题）31.____ the houses were knocked down in the ____,a car knocked her down The man down by a car was dying.A knock B knocking C knocked ___ crossing the street ,he was knocked down by a car.选项:a、B The old man was knocked down by a car [ ]he saw it run towar ①John had an a____:he's been knocked down by a car.②the foot The old lady was knocked down by a car when she walked on th the old man was knocked down by a taxi when he was crossing A car knocked the woman down