As Chinese teenagers, we should remember the past ,live the present and dream the future.A. on , aboutB. in , aboutC. in, in
Andy and his brothers have bedrooms ________. They live in a big house.
—Bob, can you read the number 420,309? — Yes, I can. It’s ___________.
— _______ is it to your hometown from here? — Well, it takes over two hours by train.
The boy is only four years old, but he can swim ______ the lake.
—What’s the capital of Ottawa ? —_______ .