阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或者使用括号中词语的正确形式填空。 My friend David is a doctor. He likes his work very much and he is {#blank#}1{#/blank#} (friend) to everyone. Every day he works hard and saves a lot of people's {#blank#}2{#/blank#} (生命). He also likes singing songs. He often listens to music in his free time, because he wants to be a m {#blank#}3{#/blank#}. I really hope my friend can make his dream come t{#blank#}4{#/blank#}. Now, it's seven o'clock, He {#blank#}5{#/blank#} (切) vegetables into pieces to make dinner. I like my friend.