— Why does the lake smell terrible?— Because large quantities of water ____.

Across the Yangtze River ______ more than one bridge, the Nanjing Changjiang Bridge being the first one.

The number of people invited ______ fifty, but a number of them ______absent for different reasons

--Is there a hospital near here?--Yes,________.

The population of this city, 30% of which_______, ______ 10% in the last two years.