问题
选择题
It is not profitable to provide bus services in districts where the population is widely _____.
A．scattered
B．dismissed
C．separated
D．spread
答案
A
scattered是scatter的过去分词，也可作形容词用，（="lying" in different directions; not situated together, wide apart）分散的，散布在各处的。Separate分开的，spread传播；摊开，dismiss解雇。