Readers can quite well without knowing the exact meaning of each word.
. _______a bicycle to use,you have to insert a special card.
. _____the wind and waves we were going in the direction of the whirlpool,and nothing could save us.
. By around 900 AD,there were many places in Northern Europe______the Vikings chose to live.
. ---Would you mind if asked you where you’re from? ---__________ .
. I like skating very much. ___________tomorrow, we could enjoy this thrilling sports as much as we can together.