What is that?改为复数形式.

what is that over there?(改为复数形式）快! What is that?itis a pen改为复数形式 He is a student.转为复数形式 Is that an English car?改为复数形式 What co That is my sister改为复数形式 is that his key (改为复数形式) Is that this watch?改为复数形式 that is his sister改为复数形式 that is my dress.改为复数形式 Is that a basketball?改为复数形式 Whose book is that?改为复数形式 What is it 改为复数形式 改为复数形式 Is that an English book?What"s this in English?It is