Question

There are _____advertisements which encourage ______to participate in improving their neighbourhood.

A．the public,the public	B．the public,public
C．public,public	D．public ,the public

Answer 1

D

词形辨析。句意：有公益广告鼓励公众参与改善社区的活动。结合语境可知前文为形容词作定语，下文为名词，特指某些公众，用定冠词。故选D。