sweep the floor为什么加the

sweep the floor为什么加the Mum sweep the floor.(sweep）用加s吗? He____can sweep the floor.can前面加什么? You must sweep the floor.为什么用THE, sweep the floor clean the floor区别 sweep the floor的中文 I (sweep) the floor now. me,floor,sweep,let the Let him____( sweep) the floor robot/the/can/sweep/floor/the i made him sweep/swept the floor sweep 还是swept we'll have to sweep the floor before mother__(come/comes)back要不要加s Amy can sweep the floor.怎样提问 sweep the floor怎么样记最简单 they()[not,sweep] the floor now Can you sweep the floor?怎么回答 用sweep the floor照句 sweep the floor动词原形是什么