that isn't a watch改为复数形式?

问题描述:

that isn't a watch改为复数形式?

Those aren't watches.is thisadictionary复数形式Are these dictionaries?it's aphoto复数形式They're photos.thosearen't englishbooks单数形式。That isn't an English book.Are these oranges单数形式Is this an orange?they are my sisters单数She is my sister.