Is that a watch?(怎么改为复数形式）

Is that your watch 改同义句 is that his a room?怎么改/ Is that a watch 怎么改为复数句子? Is that a watch?(怎么改为复数形式） This is a watch.对a watch提问是什么?that That is a theatre.的否定句怎么改 that a is name chinese组成一般疑问句怎么改 Is that a dictionary?改肯定句,并作否定回答 I can spell watch（改为一般疑问句） She is going to watch TV.改为一般现在时,怎么改 The little boy can't tell ________.A.whose is that watch B.whose that watch is C.whose watch is that D.whose watch is That is a watch on the table.怎么改成复数形式 Is that this watch? that is a cup i am a teacher she is my friend 都改复数怎么改啊 请根据要求改句子He is my student （改否定和一般疑问句）They are my friends （改否定句和一般疑问句）That is a watch （否定和疑问和特殊疑问句） Tim has a watch.怎么改一般疑问句 that is a watch用a clock改成选择疑问句 is that pencil case 怎么改? Is that his dictionary怎么改陈述句?