—What are you going to be when you grow up,Sam?—________ teacher like you.
—You won the first prize in the last Physics competition once again. —___________. I made several mistakes.
— 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.