These boxes are ours氦为单数形式
These boxes are ours.(氦为单数形式)
句型转换 Are these your pencil-boxes?(改为单数形式) ___ ___ your___?
there are some rulers in our pencil boxes(变成单数形式)there_ _ _i
These are boxes. (改为单数句)
These boxes are brown.变单数
Those are old boxes. (改为单数)
those,are.his.boxes改成单数,怎么改
把they are boxes.改为单数句怎么改
There are oranges in the boxes.改为单数句
初一英语单数第三人称单数形式,
like第三人称单数形式