These are apples改为单数形式

These are apples改为单数形式 these are apples 改为单数形式 are these apples?改为单数形式 These are our apples改为单数 these are our apples改为单数句子 these are apples and those are pineapples(改为单数 she is nurse (改为复数）What are those over there?(改为单数）These are apples and those are pineapples(改为单数)They are waitresses (改为单数)They are oranges (改为单数)They are apples (改为单数) they are apples改为单数 Are those apples 改为单数 These are apples变成单数形式 these are apples怎么变单数 改为单数句These are apples Those aren it any oranges 把They are apples.改为单数句 are they apples?改为单数形式 are these apples red?改为同义句 These are red apples.改为感叹句 Are these apples red?改为同义句.Are these ＿ These are boxes. (改为单数句）