13.in

1. He will be back in a few days.（过若干时间）

2. The boy has nothing of the hero in him.（在⋯之内） (3)Not one in ten

   of them could read and write.（表示比率） (4)They were dressed in rags.（穿着）

(5)I lost my way in the dark.（在⋯状态中） (6)I am not in the mood for work.（在⋯状况中）

1. Mary is inferior in physique but superior in intellect.（在⋯ 方面）

2. The words are arranged in alphabetical order.（表示部位） (9)The

   words are arranged in alphabetical order.（以⋯方式）