4.What is the height of the Big Ben's Clock Tower?
5.Lessons in this year are longer and more confusing than those last year.
6.Travelling by plane is faster but isn't as interesting as travelling in train.
7.Is it difficult to find an apartment in Ho Chi Minh City?
8.Mount Everest is the highest moutain in the world.
9.Children are taken to the zoo every weekend.
10.When she was five years old,Mary taught herself to ride a bicycle.
