What are those?改成单数

What are those?改成单数 Is this a book 改成复数形式 Those are chairs 改成单数形式 What are these 改成单数形式 what are those?改为单数 those are her books 改成单数 Those are old libraries.改成单数句 What are those? (改成单数形式) These are my shoes.(改成单数形式) It is an eraser.(改成复数形式） what are old cars改成单数形式 those,are.his.boxes改成单数,怎么改 those are glasses改成单数句去提问 What are those in English?（改为单数句） Those are old toy soldiers （改成相应的单数形式） what‘s this?（用一只鸟进行回答）what are those（用英语书进行回答）The boys are *playing football *in the playground（对画*部分提问） 改成复数句.What is it?It's a box.改成单数句.The children are YOUNG Pioneers.改成复数句,并作肯定回答.Is this a red pen?改成复数句,并作否定回答Is that an English book?改为单数句Those are apples改为单数句Those a 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) 英语句型转换（英语的 ）1.These are six apples.（改成单数句）2.These are boats.(划线提问 注：划线的单词是 boats ）3.What are those?（改成单数句）4.What is this?(改成复数句） 英语句型转换（英语的 ）1.These are six apples.(改成单数句）2.These are boats.划线提问 注：boats就是那个划线的单词）3.What are those?(改成单数句）4.What is this?(改成复数句） these those are men women boys children girls babys 改成单数形式. Are those oranges?单数形式 Are those apples 改为单数