Don’t speak_________ , Li Shan. Your sister is doing her homework now.

. What a ______cough! You seem _____ ill.

Who bought you the fresh flower?—It’s from my girlfriend, if you ______ know.

．________ all over the hills and around the lake are wild flowers of different kinds.

近来，即将离开大学的毕业生纷纷在网上留言“晒遗憾”。某校报特意摘取四则大学生留言编成“晒遗憾专栏”，请你认真阅读留言后，在下列为专栏拟写的标题中，选出最恰当的一项网友