They failed to come yesterday.改为同义句?

They failed to come yesterday.改为同义句? they both went to the party yesterday改为同义句 They do not have to come.（改为同义句） They ___not come. They come from Australia.(改为同义句) I failed to reach him by phone 改为同义句 they+went+to+the+shops+yesterday改为同义句怎么改 They were busy the day before yesterday.改为同义句 They bought a good computer yesterday.（改为同义句） They had fun yesterday.(改为同义句） they who should come failed to appear. They went to see you yesterday , but failed to meet you.(强调句 we hope they can come here.改为同义句