______ takes a lot of concentration and a great sense of balance to stay on it.
.. Did you notice the little boy __________ away?
.The work should be given to ________ you think can finish it ahead of time.
.. His family, which _______ rather a large one, ______very fond of their old house.
. The small mountain village______we spent our holiday last month lies in is now part of Hubei.
.. __________ the fact that it was raining, she still went out hurriedly.