''S' WITH ELLIPTED NOUN
EGP #329 | C2 | DETERMINERS / possessives Can use ''s' without a following noun when the noun has already been mentioned or is obvious in the context. Lexical range: N/A
这不是我的笔，是我朋友的。
This isn't my pen; it's my ___friend's.
我的自行车坏了，所以暂时用我妈的。
My bike is broken, so I'm using my ___mother's for now.
他的院子没有邻居的那么漂亮。
His garden isn't as nice as his ___neighbour's.
我以为这个方案是我的主意，其实是老板的。
I thought the idea was mine, but it was actually my ___boss's.
我忘记带手机了，只好借了我弟弟的。
I forgot my phone, so I had to borrow my ___brother's.