不在家

The door's locked, so plainly they must be out.

这门锁着，明摆着他们不在家。

Supposing he is not at home, what then?

假如他不在家,那怎?

Ask if he is at home.

一他在不在家。

Not normally home cooked but bought at a fish and chip shop ("chippie" in north of England) to eat on premises or as a "take away" or as US would say "to go".

通常不在家，但熟食买一条鱼芯片店（ “薯条”在英格兰北部的）吃的处所“拿走”会说“去” 。