把they are boxes.改为单数句怎么改
把they are boxes.改为单数句怎么改
They are orange schoolbag改为单数句,怎么改啊!
They are some good dictionaries.改为单数句怎么改
你好、Are they student 改为单数句怎么改?
These are boxes. (改为单数句)
-What are those?-They are pencil-boxes.(改为单数句)
把They are apples.改为单数句
They are my boxes 改为否定句
There are oranges in the boxes.改为单数句
those,are.his.boxes改成单数,怎么改
Those are old boxes. (改为单数)
they are my friends改单数句