1.Everyone has his inherent ability ,________________ (只是很容易被習慣所掩蓋).
2.The importance of traffic safety , _________________ (無論如何強調都不為過).
3.In my opinion , ______________ (打電動玩具既浪費時間也有害健康).
4.There is no doubt that ______________ (近視是一個很嚴重的問題)among the youth of our country.
5.According to my personal experience , ___________________ (微笑已帶給我許多好處).