1、This is a watermelon .2、It is a yellow shirt.3/That 's my watch.变为复数怎么变

Is this a book? Yes,this is. This is a man提问( ) is this? Maybe this is a happy ````````````1``` This is a love this is a japan This is a this is a This is a book this is a Demo This is a secret This is a story This is a This is a n_____jacket is this a jacket This is a cirde. This is a this is a hat This is a snowmans