The last few years ________ many natural disasters around the world, from drought to earthquake.
In the past two months, he ______ himself to the way of life in the new school and how he wishes he _______ the teacher’s advice.
As was recorded in history , Diaoyu Island has been _________ part of China.
With efforts _______ conservation, we may believe that people enjoy a healthy life without the environment around them ________.
__________ the reason , research shows that laughter is good for your health.
The boy _______to his mother that he had _______ the table for supper and then ____ down to have a rest.