He must be working句型转换

He must be working句型转换 句型转换：It must be SARS.(变否定句） 句型转换.1.Hi 句型转换. 1.His father coughs badly,so he must stop sm He always wants to get more money without working.He must be there be句型转换 while you are crossing the street,you must be carefui句型转换 句型转换。 1. His father coughs badly, so he must stop smoking. ( 句型转换。 1. He may be a scientist.(同义句转换) He must be happy! he must ( )here.《be》 句型转换:You must go home now. We must study hard做句型转换