اللغة الإنجليزية فصل ثاني

In this lesson 

(UNIT 5 /lesson 2 and 3) in titled :The best detective of all time’.

The writer is talking about three detectives : Sherlock Holmes  , Dr Watson and Ms Jane Marple.

He described them carefully and used the best describtion to each one 

He mentioned that Sherlock Holmes is the most famous between the two others ,whereas Ms Marple is the eldest one.