Have you eaten your dinner already? We are still waiting for ___________ .

Have you eaten your dinner already? We are still waiting for ___________ .
This isn’t David’s bicycle. ___________ is new.
Is that your pen? I have lost ___________ .

you
this
this

ours His mine 再看看别人怎么说的。

Have you eaten your dinner already? We are still waiting for _ours_ . This isn’t David’s bicycle. __His_ is new. Is that your pen? I have lost __mine__ .