It is ___________ that theQing Tombs are influenced by the Ming Tombs, especially architecture and the way they are placed among the surrounding mountains and valleys.
Fighting an artificial greenhouse effect seems to be the greatest of environmental challenges, ________?
A series of stimulus policies and supportive measures taken by the government ________ to promote change in the economic environment in this area.
Only when he returned ________ that the war had ended and the army had come back.
________, his idea was accepted by all the people at the meeting.
—________ no ad during TV plays. —Great move! I cannot tolerate those annoying ads appearing every several minutes.