Nanjing is _______ capital of Jiangsu. It is _______ old city in China.

ould have avoided thatterrible car accident, but he ________ careful enough

neral secretary stressed that what he had just said was only his _________view, not official intentions.

We __________ take books out of the reading room. We _________ only read it here.

The air pollution of the city ____ by 20 percent thanks to the strict measures taken by the government.