1 Fill in than, of or in. 1 Charles is the tallest student ...In... the class. 2 James' house is bigger ... mine. 3 The Nile is the longest river the world. 4 Mr Beale is older Mr Clark. 5 This car is the most expensive all. 6 It is colder today ........ it was yesterday. 7 Who do you think is the most beautiful womar the world? al a