We have various summer camps for your holidays; you can choose __________ based on your own interests.
Not until the 11th century, when a young lady brought a fork to Italy, _______.
On August 12,2009, Typhoon Morakot swept across Taiwan island, _____ a lot of villages _____.
It is so heavy a box _____ no one can move.
—Why does the lake smell terrible? —Because large quantities of water _____.
Sarah hopes to become a friend of_______ shares her interests.