.—Why are the housing prices in big cities going up all the time?
—One reason is that people are________into overcrowded cities in great numbers.
A.breaking B.filling C.pouring D.hurrying
.—Why are the housing prices in big cities going up all the time?
—One reason is that people are________into overcrowded cities in great numbers.
A.breaking B.filling C.pouring D.hurrying
C