这是我的书。而这是你的铅笔盒。

This is my book and this is your pencil-box.

youdao

对不起！这是你的铅笔盒吗？

Excuse me! Is this your pencil-box?

youdao

请原谅，这是你的铅笔盒吗？

Excuse me. Is this your pencil case?

youdao

请问，这是你的铅笔盒吗?

1A:Excuse me. Is this your pencilbox?

youdao

这是你的铅笔盒吗？

Is this your pencil box?

youdao

这是你的铅笔，我的在铅笔盒里。

This is your pen. Mine is in the box.

youdao

这是你的钢笔，我的在铅笔盒里。

This is your pen. Mine is in the pencil-box.

youdao

这是你的笔我的在铅笔盒里。

This is your pen. Mine is in the box.

youdao

这是你的笔我的在铅笔盒里。

I can't find my pencil case.

youdao

这是我的钢笔，你的钢笔在桌子上，他们的钢笔在铅笔盒里。

This is my pen, your pen is on the table, and their pens are in the pencil case.

youdao

这是你的铅笔，我的在铅笔盒里。

It isn't my pencil. It's your pencil.

youdao

这是你的铅笔，我的在铅笔盒里。

It isn't my pencil. It's your pencil.

youdao