_____ the great efforts we had made three years before, we failed to carry our plans through.
As early as his second film, Chaplin had developed his own manner of acting, the one that __________ world famous.
The natural resources, such as mine, forest, and hydropower (水电)in that area have been __________.
The matter __________ to our study requires __________ with carefully.
Dogs have a very good __________ of smell and are often used to search for survivors in an earthquake.
They found themselves in front of a wooden house __________ with bamboos.