Most people think 8 is a（an)____ (luck) number while 13 is a(an)___(luck) number.
问题描述：
Most people think 8 is a（an)____ (luck) number while 13 is a(an)___(luck) number.
His __(die) was a great loss to our country
His success __courage us to work harbour.
答
答案：1. lucky（幸运的）2. unlucky（不幸运的）3. death(死亡）4. encourage(鼓励）