把They are apples.改为单数句
把They are apples.改为单数句
what are they?they are apples改为单数句
they are apples改为单数
are they apples?改为单数形式
把they are boxes.改为单数句怎么改
Are those apples 改为单数
Some apples are in the bag.(改为单数句)
there are some apples on the chair 改为单数句
they are orange sweaters 改为单数句
They are American teachers(改为单数句)
Are they women doctors? 改为单数句
They are my friends.改为单数句