Three-fourths of the surface of the earth___sea.
As everyone knows, the Diaoyu Islands ________ China since ancient times.
We’ll visit the West Lake this weekend, ________ the City Hangzhou is famous .
My brother and I have decided to take____ great bike trip to Tibetan and I’m busy planning our schedule for _____ trip.
Yosemite National Park has the best collection of native plants. ______, it contains a great number of trees and flowers from overseas.
The engines of the ship were out of order and the bad weather ______ the helplessness of the crew at sea.