点击下方单词，组成正确的英文句子( 单词数量:9 )
句子中的“do not”结构起到强调劝告和提醒的作用。
"not" 副词不; [用以表示否定、否认、拒绝、禁止等]不是; 几乎不; 未必，没有[用于否定后面的词或短语]
"Pessimists see problems in opportunities; optimists see opportunities in problems."
"Why not choose to live each day happily?"
"As long as you maintain a positive attitude, joy follows."
"Give life a smile, and give yourself a smile."
"A smile keeps you young a smile brings no worries"
