they are offices.怎样改单数句

they are offices.怎样改单数句 people who work in offices are frequently referred to as 'white-collar workers' for the simplereason that they.这里的the simple reason怎样理解,怎么翻译 people who work in offices are frequently referred to as 'white-collar workers' for the simplereason that they.这里的the simple reason怎样理解,怎么翻译. where are the offices? ______behind the hall.菜鸟问题,懂者进!请问这个空应该填“There are还是“They are? are there any school offices offices? They are怎样缩写? What are they?They are buses改位单数形式 where are the offices? They are behind the hall.又是菜鸟问题,懂者进!问什么答句要用“They are开头而不用“There are”开头?they are不是指他们吗?怎么可以用来指地点? Where are they playing badminton?改一般现在时 They are both student.改同义句 they are my good friends改否定 They are take photos改一般疑问句 They are from China 改一般疑问句 改病句 They are collect useful things They are working hard.改感叹句 they are some apples 改单数：---------- ------------- --------------- they are good friends 改单数句