用方框中所给单词的适当形式填空。 每词限用一次,每空限填一词。
have healthy one hear read
He is ________ to make money to help his parents live a better life.
下列关于人类遗传病的叙述,正确的是 ( )
整亿的数改写成用“亿”作单位的数,只需去掉末尾的( )个0,再添写一个“亿”字。