不在家

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

这门锁着，明摆着他们。

Supposing he is not at home, what then?

假如他,那怎么办?

Ask if he is at home.

问一问他。

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，但熟食买一条鱼芯片店（ “薯条”英格兰北部）所或“拿走”或美国会说“去” 。