---Why not go to see the movie with Lydia?---Because I ______ it.
— Has your mother ever been to London?Yes ,and ____ . We went together.
_____ Jack ______ Jim has been to to China, but _____ of them knows little about China in fact.
Nowadays, more and more people would rather ______ in the country, because there is ______ pollution than in the city.
My father plans _____ an article about new methods of ______ math.
A new park ______ in the southern part of the city in the near future.