英语翻译铅笔和钢笔在桌子上.铅笔和橡皮在书架上.请帮我哈~

The pencil and the pen are on the desk.
The pencial and the rubber are on the shelf.
都要加the，指定

The pencil and pen are on the desk.
The pencil and rubber are on the bookshelf.

您好!
铅笔和钢笔在桌子上.
Pencil and pen are on the table.
铅笔和橡皮在书架上.
Pencil and earser are on the bookcase.

the pencils and the pens are on the desk.
the pencils and the rubbers are on the desk.