1)But often it is not until we ( 生了病 ) that we ___________________finally learn to appreciate good health. 2)A rich old lady _ ___________________________________________________( 死了躺在家里两个星期 ) — and nobody knew anything about it. 3)It's said that he _ _______________________________________________( 猝死于心脏病 )when he was at work. 4)Don't sit too close to the fire to keep warm — you could easily get burned, especially if you_____________________________________( 睡着了 ). 5)In those days people believed in _______________________________( 早结婚 )and having children early. 6)Little Tom was unable _ _______________________________________________( 坐着不动超过几分钟 ).