Garter Druse _____ his being selected for the important task to his courage,devotion and knowledge of the area.
As many as nine tourist attractions are visited free on National Day, and you can choose _________ suits you best.
China is becoming stronger and stronger and _________ an important role on the international stage in recent years.
Instead of blaming others for our failure, we should _________ what to do next and try our best to succeed in the future.
Look, the ground is wet. It must have rained last night, _________?
Air pollution results in stronger greenhouse effect, which __________ leads to global warming. We must take measures to prevent pollution before it is too late.