句子改错

1.She is becoming increasingly interested in stamps.（用副词increasingly修饰interested）
2.Advertising companies need a new way to sell.（need sb./sth.to do sth.）
3.With the money,she bought a new coat for her.（buy sth.for sb.固定搭配）
4.The room is not big enough for us five to live in.（不及物动词的不定式用介词补全）
thank you very much!