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 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?答语 what什么are those What colour are those What are those?________(those)are books. what are those on the wall?( ) are some pictures A.those B.these C.they 单选, Those are my books 改成 _____ are those? 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） over what those are there what are those?改为单数 What are those?They are___________. What are those in English? What are those?____are___apple_ trees what are those?(回答问句) What are those on the Those are potatoes.(改成一般疑问句.） those are Chinese books.改成复数句