those,are.his.boxes改成单数,怎么改

those,are.his.boxes改成单数,怎么改 Those are his parents改同义句 these,books,are,and,those,boxes,are 连词成句 boxes.are.which.his连词成句 连词成句black,those,boxes,are,pencil _____________________________? Those are old boxes. (改为单数)_____ ______ old ______. 单数句变复数句,复数句变单数句1He is his friend.2Those are boxes.3 These are desks. How to say orange in chinese What is the colour of those boxes?是否等于What color are those boxes 把they are boxes.改为单数句怎么改 -What are those?-They are pencil-boxes.(改为单数句） 这些英语句子怎么改形式?this is a piano（改复数）that knife is short（改复数）is it a spoon?（改复数）are they old cooks?（改单数）are those girls new?（肯定句）are these pencil-boxes old?（肯定句） Those are my ( ).A pencil B boxes C watchs D pens those are my怎么改特殊疑问句 Those brushes are theirs.(改单数句) are those our english books?改单数 Are those oranges?单数句怎样改 Are those your erasers改否定句 those are our chinese books改单数